Nowadays, there are many junior high school students who join Science club. They can learn a lot experiments and find out how certain thing happens. Science experiments are not always complicated. These experiments that are written in this article are very simple. They can be your science fair projects ideas for 7th grade at home.
The first simple science experiment is water bomb. What you need to prepare are water, small glass, and plastic packaging bag with sealed, baking soda, vinegar, and paper.
1. Tear the paper with the size of rectangle 10cm x 10 cm.
2. Pour 1 teaspoon of baking soda into the paper and shape it like a rectangle.
3. Pour ½ glass of vinegar and ¼ glass of warm water into the plastic.
4. After that, put the paper with the baking soda inside of it into the plastic and sealed it immediately.
5. Shake the plastic for a little while and then run!
6. The plastic will explode like a bomb.
Because the soda (sodium bicarbonate or NaH(CO3)2) is basal and the vinegar is acid (acetic acid or CH3COOH). So when basal and acid meet together, the soda will unravel the carbonate and it will turn into carbon dioxide which cause bubble gases.
The second experiment is plastic lung. In this experiment, the children can learn how the lung works and practice the exhale and inhale. You need to prepare mineral water bottle, balloons, a knife, candles, and a double tape.
How it works?
1) Cut mid part of the mineral water
2) Attach a balloon on the tip of the stroll, then circle the rim of the bottle with a candle
3) Fill the bottle with the stroll through the rim of the bottle, use a candle to close the leaky parts
4) Cut the second balloon then cover the bottom of the bottle with it. Finally the plastic lung is done.
5) If the balloon on the bottom of the bottle is pulled, the balloon in the bottle will be inflated
6) If the balloon in the bottom of the bottle is released, the balloon in the bottle will be deflated.
Those are science fair projects ideas for 7th grade that you can try at home. All of them are good to do to make students be more creative. Happy doing the experiments!
The first simple science experiment is water bomb. What you need to prepare are water, small glass, and plastic packaging bag with sealed, baking soda, vinegar, and paper.
How to make this water bomb?
1. Tear the paper with the size of rectangle 10cm x 10 cm.
2. Pour 1 teaspoon of baking soda into the paper and shape it like a rectangle.
3. Pour ½ glass of vinegar and ¼ glass of warm water into the plastic.
4. After that, put the paper with the baking soda inside of it into the plastic and sealed it immediately.
5. Shake the plastic for a little while and then run!
6. The plastic will explode like a bomb.
How it works
Because the soda (sodium bicarbonate or NaH(CO3)2) is basal and the vinegar is acid (acetic acid or CH3COOH). So when basal and acid meet together, the soda will unravel the carbonate and it will turn into carbon dioxide which cause bubble gases.
The second experiment is plastic lung. In this experiment, the children can learn how the lung works and practice the exhale and inhale. You need to prepare mineral water bottle, balloons, a knife, candles, and a double tape.
How it works?
1) Cut mid part of the mineral water
2) Attach a balloon on the tip of the stroll, then circle the rim of the bottle with a candle
3) Fill the bottle with the stroll through the rim of the bottle, use a candle to close the leaky parts
4) Cut the second balloon then cover the bottom of the bottle with it. Finally the plastic lung is done.
5) If the balloon on the bottom of the bottle is pulled, the balloon in the bottle will be inflated
6) If the balloon in the bottom of the bottle is released, the balloon in the bottle will be deflated.
Those are science fair projects ideas for 7th grade that you can try at home. All of them are good to do to make students be more creative. Happy doing the experiments!
