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7th Grade Science Projects

Coin Experiment – Coin in Water

By Rookie Parenting Science Updated 12/05/2020

penny at bottom of glass with water shows a reflection

Why Light bends when it passes from one medium (water) into another medium of a different density (air). This bending of light, called refraction, causes the apparent position of the coin to change to a shallower position​1​ (see diagram). The light bends when it passes from water to air on top of the water. It does…

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Thunderstorm Convection Experiment (Video)

By Rookie Parenting Science Updated 03/06/2020

pictures illustrating convection: red water floats from bottom to top, blue water sinks from top to bottom

Even though there is a severe drought in the area where we live, thunderstorms are still a common spring occurrence. I have shown my kid how rain was created before. Now she’s curious how thunderstorms form and what causes them. So what is a thunderstorm? A thunderstorms is a storm with lightnings and thunders. What causes…

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2 Light Refraction Experiments

By Rookie Parenting Science Updated 05/15/2020

Refraction Of Light There are so many good refraction of light experiments we want to do. Why: Experiment 1 Light bends when it passes from one medium (air) into another medium of a different density (water). This bending of light, called refraction, causes the straw to look broken​1​. The portion of the straw that is submerged in water…

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Balloon Rocket Car Race | Propulsion STEM Activity

By Rookie Parenting Science Updated 05/15/2020

Balloon Rocket Car Race | STEM Experiment

Propulsion And Newton’s Third Law How do airplanes fly in the sky, ships move in the water and rockets take off into the space? These movements all have one thing in common — thrust. Why When the balloon is blown up, the air inside is pushing on the skin to keep it inflated. Covering the straw opening keeps…

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Color Changing Flowers Science Project

By Rookie Parenting Science Updated 05/15/2020

color changing flowers experiment

Do you know that flowers can drink up water and change their own colors into the color of the water they drink? Flowers and plants drink water through their roots. In cut flowers, since there are no roots, water travels from the cut directly into the stems and travels to the petals and other parts…

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Warning is hereby given that not all activities are appropriate for all individuals or in all situations. Implementation should be undertaken only in appropriate settings and with appropriate parental or adult supervision.

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