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honey
whole milk
dishsoap
water
vegetable oil
rubbing alcohol
metal bolt
popcorn kernel
cherry tomato
ball
2. Leak-Proof Bag
Flexible plastic is made of polymer chains. The polymers have many molecules inside of them. When the pencil goes through the bag, the molecules in the polymer chains surround the pencil, sealing it up tightly and preventing leaks.
Zip lock bag + pencils
3. [https://www.rookieparenting.com/floating-rice/] Floating Rice – Friction Experiment
uncooked rice grains
plastic bottle
pencil/ pen
[As you press the pencil into the bottle, the grains of rice are pushed together to make room for the pencil.
The grains are packed closer and closer together each time you insert the pencil until the grains are rubbing against one another with little or no air pockets in between.
This is when friction can make the pencil “stick” in the rice.
Friction is a force of resistance when one object’s surface moves over another’s.
It always opposes the motion or attempted motion of one surface moving across another.
When the grains are packed so tightly together, the friction between the rice and the pencil is strong enough to hold the pencil in place, allowing you to pick up the whole bottle with the pencil.]
4. https://byjus.com/question-answer/when-a-plastic-comb-is-rubbed-with-dry-hair-it-acquires-some-charges-due-to/
comb
balloons
5. https://www.kiwico.com/diy/stem/quick-easy-experiments/invisible-ink-with-lemon-juice
Lemon juice is mostly made of a variety of sugars, acids, and water. Normally, lemon juice is mostly clear, so when you dilute it even further in water, and paint that mixture onto some paper, you can't see it. However, heating up lemon juice causes some of its sugars to react with oxygen in the air (oxidation), which turns these sugars brown. Acids in the lemon juice can also react with fibers in the paper to make more sugars, which again turn brown in the heat. Your invisible ink might seem like magic, but really, it's all just chemistry.
6. https://www.survivingateacherssalary.com/lung-science-experiment-and-tobacco-prevention-resources/ LUNGS
Duct Tape
2 Straws
1 Liter Clear Plastic Bottle
4 Balloons
GET CHOCO FOR QUESTIONS
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