DIVERƒeƒLƒXƒg ƒ{ƒbƒNƒX: 				

















  



	           



              
              



		










ƒeƒLƒXƒg ƒ{ƒbƒNƒX: SCIENCE CONCEPT
ƒeƒLƒXƒg ƒ{ƒbƒNƒX: .Why squeezing the bottle, makes the diver sink toward the bottom of the bottle?

	 We make a system that air pressure is equal to the water pressure. When the bottle was squeezed, the water pressure was also increase and the diver sink toward the bottom to equalize the pressure. It can also be observed that when the bottle was squeezed, the water level inside the straw (diver) increases.

Taking it further:

1. Tell the students to try other materials and shape for the diver. Try to use small container (like catsup container for kids) as a diver.

2. Try pressing the bottle simultaneously (press-release) and observe the reaction of the diver.

3. Ask the students to explain the concept using Buoyancy.

1. Cut the drinking straw and bend it in U-shape.

2. Use the paper clip to join both ends of the straw. This serves as your diver. Optional: You can connect additional paper clips on the diver.

3. Fill the bottle with water until on its top.

 

4. Test the floating ability of the diver. Put water on the straw and dip immediately in the water. If the diver floats at top of the water, add water on the straw or add paper clip. If the diver sinks, remove water or removed the additional paper clip.

5. When the diver is just barely floating, put it on the bottle; be careful not to let the water on the straw drop. Close the bottle tightly.

6. Press the bottle in the middle. The diver should goes down. Release the bottle and the diver goes up.

PROCEDURE:

· Plastic bottle

· Pot of water

· Drinking straw

· Paper clips (you can use colored paper clips)

· Scissor

ƒeƒLƒXƒg ƒ{ƒbƒNƒX: MATERIALS:
ƒeƒLƒXƒg ƒ{ƒbƒNƒX: EXPERIMENT LISTS

 PHYSICS
Balancing a Dragonfly
Does Air Takes Up Space?
Improvised Battery (Option 1)
Improvised Battery (Option 2)
Improvised Battery (Option 3)
Tornado in the Bottle
Diver
Surface Tension and Air Pressure
 Aluminum Wrap Railway
Light to Sound
 Magnetic field in 3D
 Simple Kaleidoscope
 Art in Polarizer
 Simple Spectroscope
 Electrostatic Motor
 Paper Earphone



CHEMISTRY
Vegetable/Fruit Charcoal
 Red Cabbage Extract (Identifying Acidity of  a Liquid)
 Alkalinity of a Liquid
  Crayon Making
 Hand Printing using Soap
 Testing Raindrop Acidity using Red Sweet Potato Powder
 Magic! (Water doesnft fall?)



BIOLOGY
1. Leaves Puzzle




ACTIVITIES

Fossil Hunting
Gold Sieving
Smelting  Steel
Observing Classes
Attending Trainings
ŠpŠΫŽlŠpŒ`: HOME
ƒeƒLƒXƒg ƒ{ƒbƒNƒX: EXPERIMENT LISTS

 PHYSICS
Balancing a Dragonfly
Does Air Takes Up Space?
Improvised Battery (Option 1)
Improvised Battery (Option 2)
Improvised Battery (Option 3)
Tornado in the Bottle
Diver
Surface Tension and Air Pressure
 Aluminum Wrap Railway
Light to Sound
 Magnetic field in 3D
 Simple Kaleidoscope
 Art in Polarizer
 Simple Spectroscope
 Electrostatic Motor
 Paper Earphone





CHEMISTRY
Vegetable/Fruit Charcoal
 Red Cabbage Extract (Identifying Acidity of  a Liquid)
 Alkalinity of a Liquid
  Crayon Making
 Hand Printing using Soap
 Testing Raindrop Acidity using Red Sweet Potato Powder
 Magic! (Water doesnft fall?)





BIOLOGY
1. Leaves Puzzle




ACTIVITIES

Fossil Hunting
Gold Sieving
Smelting  Steel
Observing Classes
Attending Trainings
ŠpŠΫŽlŠpŒ`: HOME