Junior high school science and technology innovation laboratory hot subscription

The science and technology innovation laboratory consists of nine modules: electromagnetism, mechanics, optics, thermals, energy conversion, life sciences, mathematics and robotics. The design of experiments is carried out according to "fun", "suspicious", "moving" and "thinking". organization. Create a scientific inquiry experiment environment (experimental equipment, experimental methods, experimental atmosphere), follow the students' cognitive rules, and cultivate students' ideas, methods and abilities to solve practical problems. The Science and Technology Innovation Lab can meet the needs of students' independent learning. It solves the problem of how teachers teach and how students learn, which is conducive to students mastering research methods, mastering book knowledge, cultivating scientific inquiry ability and forming scientific values.

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name

Technical parameters and specifications (unit: mm)

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Quantity

01

Quest for earth structure

Specification: Φ800×700, ABS engineering plastic, open mold once.

The earth can be regarded as a special sphere. According to the scientific research conclusions today, the earth is composed of multiple layers of concentric circles. These concentric circles are called the core, the mantle and the crust from the inside to the outside. The complex structure and high temperature and high pressure inside the earth. The violent squatting movement is the main cause of the earthquake.

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02

Volume game

Specification: Φ800×700, ABS engineering plastic, open mold once.

The exhibits use the principle of noise detection.
Exhibit operation instructions:
After the power is turned on, the exhibits enter the working state. At this time, the two visitors can enter the transparent soundproof room and yell for 10 seconds against the sound detection port. At this time, the LED indicator above the detection port will automatically display the decibel value of the visitor.

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03

Magnetic turntable

Specification: Φ800×700, ABS engineering plastic, open mold once.

Magnetic force is a kind of non-contact force. The basic nature of magnetic force is homosexual repelling and opposite sex attracting.

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04

Irregular pendulum

Specification: Φ800×700, ABS engineering plastic, open mold once.

The same polarity magnetic force repels, and the opposite polarity magnetic force attracts.

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05

Beat the scale

Specification: Φ800×700, ABS engineering plastic, open mold once.

You can hear the music played by the tubes of different lengths above by tapping the nozzles of the "shooting scale" device with a special tempo.

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06

iron ornamental work

Specification: Φ800×700, ABS engineering plastic, open mold once.

Shape memory effect

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07

Flywheel energy storage

Specification: Φ800×700, ABS engineering plastic, open mold once.

Through the huge flywheel to accumulate kinetic energy, and then convert the stored energy into electrical energy, to understand the inertial energy storage and energy conversion.

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08

Light reflection

Specification: Φ800×700, ABS engineering plastic, open mold once.

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09

Magnetic chair

Specification: Φ800×700, ABS engineering plastic, open mold once.

The magnetic force is a non-contact force, the same sex repels and the opposite sex attracts each other; the strong magnets are made into a stool by the same-sex repulsive characteristics, which can visually and intuitively experience and observe the phenomenon that the magnets are repelled by the same sex.

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10

Dad's nose

Specification: Φ800×700, ABS engineering plastic, open mold once.

The middle mirror is made up of transparent glass and flat mirrors, so some of the light reflected from your face is projected through the transparent glass, and some of it is reflected back by the mirror. The same is true for the opposite. So the new face you see is the synthesis of your original face and the face of the opposite friend.

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11

Fresnel lens

Specification: 900×600×750, ABS engineering plastic, open mold once

Fresnel lenses are also known as threaded lenses or step lenses. It was proposed by Fresnel in 1919 for use in lighthouse lighting systems. The Fresnel lens utilizes a threaded groove shape to give the lens a focusing and diverging characteristic similar to a spherical lens. Its working principle is basically consistent with the spherical mirror. The focus is only the sawtooth portion of the lens.

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12

Fresnel lens

Specification: 900×600×750, ABS engineering plastic, open mold once

Fresnel lenses are also known as threaded lenses or step lenses. It was proposed by Fresnel in 1919 for use in lighthouse lighting systems. The Fresnel lens utilizes a threaded groove shape to give the lens a focusing and diverging characteristic similar to a spherical lens. Its working principle is basically consistent with the spherical mirror. The focus is only the sawtooth portion of the lens.

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13

Magnetic liquid

Specification: 900×600×750, ABS engineering plastic, open mold once

Demonstrate the special phenomenon of magnetic fluids

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14

gear drive

Specification: 900×600×750, ABS engineering plastic, open mold once

Introduce the characteristics and application of gear transmission

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15

Colored shadow

Specification: 900×600×750, ABS engineering plastic, open mold once

The formation of shadows and the different colors obtained by the hybrid lock of the three primary colors

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16

Magnetic levitation

Magnetic levitation demonstration

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17

TV and magnetic

How does the moving charge change the direction of motion in the magnetic field?

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18

Nail bed

The larger the area, the smaller the pressure

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19

Principle of the movie

Demonstrate visual persistence

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20

Big name

Principle of leverage

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1

twenty one

Animal call

Introducing the sounds of different animals

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twenty two

Electromagnetic accelerator

Demonstrate electromagnetic force and inertia

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twenty three

Electromagnetic swing

Electromagnetic force interaction

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twenty four

Electromagnetic tendon

Electromagnetic force interaction

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25

Seismic station

Demonstrate earthquake phenomena

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26

Electromagnetic ping pong

Electrostatic force rejection and attraction

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27

Earth structure

Demonstrate the internal structure of the earth

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28

Electric wind drum

Ion wind generated by cutting-edge phenomena

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29

Large field of view

Complementary color perspective

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30

Multi-image mirror

Multiple reflection of a flat mirror

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31

Conservation of momentum

Momentum transfer and conservation

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32

Typical gear transmission

Gear transmission types, features and applications

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33

Typical institution

Types, characteristics and applications of typical institutions

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34

Animal eye (fish)

Visual characteristics of fish eyes

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35

Animal eye (insect)

Visual characteristics of insect eyes

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36

Flip mirror

Inversion of light after three reflections

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37

Fresnel lens

Special magnification effect of flat lens

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38

Power generation anchor

Demonstrate electromagnetic conversion

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39

Simulated lightning

Demonstrate lightning phenomenon

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40

Compound pendulum

Demonstrate chaotic swing

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1

41

wind power

Energy conversion

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42

Fu Kesha pendulum

Demonstrate Coriolis force phenomenon

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43

Brahma Tower

Mathematically solve the minimum number of moves

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44

Square wheel

How to move the square wheel

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45

Fractal art

Demonstrate similar fractal phenomena

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46

Wind show

Demonstrate wind level

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47

Faraday cage

Demonstrate high voltage current shielding

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48

Wind speed demonstration

Demonstrate wind speed level

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49

Wind tunnel lift

Demonstration fluid mechanics

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50

Equation flower

Demonstration composite track

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51

bullet-proof glass

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52

Body armor

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53

Reaction capacity determination

Test the brain's response to the signal

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54

Floating ring

Visual illusion

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55

Reflection parabola

Demonstrate the trajectory of a parabola

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56

arch bridge

Mechanical characteristics of arch bridge

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57

Rolling ring

Demonstrate similar sports

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58

The light guide

Light guiding principle of optical fiber

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59

Turtle rabbit race

Energy conversion

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60

Roll out straight

Demonstrate the special phenomenon of pure gear movement

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61

Rolling straight ball

Demonstrate inertial motion

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62

Optical turntable

Visual persistence, color mixing

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63

Inertial swing

Dynamic balance of gravity

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64

Fiber optic transmission

Demonstrate the application of light guide materials

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65

Light column

Scanning and visual persistence

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66

Inertial swing wave (transverse wave)

Principle of shear wave generation

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67

Optical tunnel

Demonstrate multiple reflection imaging

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1

68

Probability demonstration

Probability demonstration

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69

Decomposition of light

Demonstrate white light is composite light

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70

Incredible triangle

Specifications: 700 × 700 × 1000

This exhibit demonstrates the optical illusion produced by the perspective principle. When people observe things from a particular observation point, they will treat some things with different spatial levels as a flat figure, so they will be perpendicular to each other due to optical illusions. The three-part component is associated into a complete triangle.

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71

Flying bowl

Specifications: 700 × 700 × 1000

Exhibits: The reason why the “bowl” is suspended in the air is due to the Bernoulli principle, because in a uniform mass flow, the higher the flow rate, the lower the pressure; the smaller the flow rate, Then the pressure is greater, so the "bowl" can be suspended in the air stably.

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72

solar energy generation

Specifications: 700 × 700 × 1000

Solar cells are one of the effective ways to use solar energy. When a solar cell is exposed to light, it will generate current due to the photoelectric effect. By blocking the surface of the solar panel or turning on (turning off) the spotlight, the participant can see the light source. This connection with the amount of electricity generated.

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73

See who is running fast

Specifications: 700 × 700 × 1000

Exhibits: According to the law of conservation of angular momentum: rotating objects with the same angular momentum, the angle of the wheel with large edge inertia is large, so the angular velocity is relatively small; the center heavy wheel is the opposite.

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74

pixel

Specifications: 700 × 700 × 1000

Exhibit introduction: “Pixel” is composed of two words: Picture and Element, which represent the smallest constituent unit of an image. The more pixels per unit area of ​​an image, the higher the sharpness of the image and the closer to the original image.

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75

Flower bloom

Specifications: 700 × 700 × 1000

This exhibit uses the novel flower opening phenomenon to express the centrifugal phenomenon of the rotating object. If the rotating object is insufficient in centripetal force (such as the rope is broken), the object will turn away from the center of rotation and even be straight out, that is, centrifuged.

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76

One window and two scenes

Specifications: 700 × 700 × 1000

There is a half mirror in the cabinet to separate the box into two parts. Only the part of the scene that the light is on can be seen, while the scene of the dark part is completely invisible. This will allow you to see two images in one window.

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77

Balance test

Specifications: 700 × 700 × 1000

Exhibits: It consists of a counter, a decoder and a digital circuit to test the balance function of the human body. The balance ability of a person is determined by the balance of the inner ear and the regulation of the cerebellar nerve. After training, the balance ability can be greatly improved.

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78

Suspension ring

Specifications: 700 × 700 × 1000

The same sex repels each other and the opposite sex attracts each other. The magnetic ring is suspended by the magnetic repulsion

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79

Wonderful instrument

Specifications: 700 × 700 × 1000

When the hands are close to the hand electrode plate, the parameters of the circuit are changed and the audio circuit starts to work. At the same time, the oscillation frequency will also change and the speaker will make a different sound.

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80

Light pressure windmill

The pressure difference of light causes the windmill to rotate

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81

Drawing graphics

The brain's ability to respond to reflected image trajectories

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82

Synthetic color

Demonstration color blending

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83

Color mixing board

Visual persistence and color synthesis

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84

Chaotic pendulum

Demonstration of chaos

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85

Shouting spring

Signal transmission and current control

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86

Glow ball

Ionizing light phenomenon

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87

Shameball 1

Ultrasonic sensing application

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88

Invisible force (arc)

Electromagnetic wave eddy current

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89

Unstringed

Photoelectric sensing

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90

Bottomless hole

Multiple reflection of light

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91

Shooting

Refraction of light

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92

kaleidoscope

Multiple reflection of a flat mirror

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93

Grip

Measuring the grip strength of both hands

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94

Suspended ball

Demonstrate electromagnetic suspension

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95

swirl

Simulating the vortex phenomenon in nature

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96

Drake duck

Fluid mechanics demonstration

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97

Rotating swing

Dynamic balance demonstration

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98

Relative motion

Demonstrate relative motion

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99

inseparable

Electronic application

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100

Sports mobilization

Demonstrate different forms of movement

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102

Audio cabin

Test volume

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103

Stealth

Illusion caused by plane mirror reflection

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104

Disc inertia

Inertia and moment

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105

Eyes of the eye

Measuring the perspective of the public

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106

Skeleton in motion

The force of human bones during cycling

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107

Jacob Ladder

High voltage arc discharge

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108

Fish wash

Resonance principle

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109

Air bubbles in the liquid

Air pressure in the liquid

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110

Marginal station

Elliptical characteristics

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111

Color difference

Eye color discrimination

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112

Light stick

Fluorescent material luminescence

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113

Eye blind spot

There is a blind spot in the field of vision of the eye

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114

Hydraulic jacks

Pascal principle for sealing liquid transfer pressure

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115

The sooner the better

Conservation of angular momentum

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116

One stroke

Detecting the viewer's eye-hand coordination ability

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117

Feeling in motion

The effect of rotating black and white cylinders on people

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118

Hydraulic transmission

Pascal's theorem

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119

Pull yourself (multiple people)

Demonstrate the power saving effect of the pulley block

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120

Pull yourself (single)

Demonstrate the power saving effect of the pulley block

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121

Orthogonal cross mill

Elliptical gauge

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122

Cone roll

The cone "rolls up" causes its center of gravity to decrease

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123

Billiard ball

Transmission of force

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124

Self-supporting ball

Introduce the principle of electromagnetic induction, asynchronous motor and the gyroscopic effect in mechanics

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125

Speed ​​down line (double track)

The ball on the cycloidal track gets the fastest acceleration

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126

Square law of natural numbers

Square law of natural numbers

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127

Not standing

Parallax of the eye to the lateral and longitudinal distance

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128

Sticky

Sensor application

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129

Heavy hammer

Sensor application

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130

Swivel chair

Angular momentum conservation and rotation effect

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131

Column wave

Column wave generation conditions and characteristics

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132

Turntable

Demonstrate the centrifugal phenomenon of objects of different masses as they rotate with the disk

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133

Ampere turntable

Demonstration of amperage through a magnetic field

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134

Hard work sucker

Introducing the viscous force of air

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1

135

Tug of war

Fixed and movable pulleys

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136

Specific arm force

Test the body's arm strength

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137

Deformation window

The influence of reference on vision in the brain

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138

Deformation stick

The influence of reference on vision in the brain

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139

Generation of waves (longitudinal wave pendulum)

Specification: 900×600×750, ABS engineering plastic, open mold once

Demonstrate graphics generated by persistence

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140

Waveform demonstration (mechanical demonstration)

Specification: 900×600×750, ABS engineering plastic, open mold once

Demonstrate the phenomenon of waveform generation

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141

Specific size

Specification: 900×600×750, ABS engineering plastic, open mold once

The influence of reference on vision in the brain

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142

Bennham Circle

Specification: 900×600×750, ABS engineering plastic, open mold once

Optical phenomena such as persistence of vision and color mixing

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143

chameleon

Specification: 900×600×750, ABS engineering plastic, open mold once

Demo Kemari

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144

Not allowed

Specification: 900×600×750, ABS engineering plastic, open mold once

Vibration sensor application

set

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145

Sticking

Specification: 900×600×750, ABS engineering plastic, open mold once

Magnetic force repels

set

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146

Wave power generation

Specification: 900×600×750, ABS engineering plastic, open mold once

Demonstrate energy conversion

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147

Boss effort to suspend

Specification: 900×600×750, ABS engineering plastic, open mold once

Boss effort in fluid mechanics

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148

Incredible triangle

Specification: 900×600×750, ABS engineering plastic, open mold once

Illusion

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149

Brownian movement

Specification: 900×600×750, ABS engineering plastic, open mold once

Pascal's theorem

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150

Illusion painting

Illusion caused by psychology, chromatic aberration, perspective principle, etc.

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Dining Tables

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