Experiments from Young Scientist
Contents
Dancing Toilet Paper
Already done on May 09, 2021.
Materials Needed
- A piece of glass
- Two thick books
- A roll of toilet paper
- A sweater
- A paper plate
Procedures
- Place the piece of glass resting on two thick books
- Tear some toilet paper into small pieces and put them on the paper plate before placing the plate under the glass
- Rub the sweater against the glass many times
- You will find pieces of toilet paper floating up to the bottom of the glass as though they are dancing.
Explanation
- Rubbing the sweater against the glass will generate static electricity drawing up the pieces of toilet paper to the glass.
A Balloon Automatically Inflates Itself
Materials Needed
- A jug of hot water
- A glass bottle
- A balloon
- A casserole dish
Procedures
- Fix a balloon to the mouth at a glass bottle.
- Place the glass bottle with the balloon in a casserole dish and fill the dish with hot water and observe.
- The balloon will inflate by itself.
Explanation
- The air in the bottle will expand when it gets heated from the hot water. The hot air from the bottle will ascend into the balloon.
- When hot air gets into the balloon, the balloon will appear to be automatically inflated.
How To Make A Magnetic Kite
Materials Needed
- A piece of paper
- A paper clip
- A roll of masking tape
- A table
- A roll of cotton thread
- A pair of scissors
- A U-shaped magnet
Procedures
- Cut out a square piece of paper 7cm in length and stick a paper clip to one of the corners.
- Cut a string of cotton thread and tape one end to the corner of the paper directly opposite the paper clip.
- Tape the other end of the cotton thread to the table.
- Bring the U-shaped magnet close to the paper clip.
- When the magnet gets close to the paper clip, the kite will lift itself from the table.
Explanation
- A magnet produces a magnetic field, which is an invisible force that attracts metal. A metallic object within the magnetic field need not touch the magnet to be pulled by it.
