2425 P4 Experiment Corrections

What sense organs did you use to find out that cup A is water when you were doing the experiment?

• Eyes

• Nose

• Skin

• Tongue

What property of water did you find out using your nose?

• Water has no smell.
• Water has no colour.

• Water has no taste.

• Water flows downwards.

What property of water did you find out using your eyes?

• Water has no colour.
• Water has no smell.

• Water has no taste.

• Some things can float on water.

Fill the water tank with water. Shape one of the balls of plasticine into a bowl shape. Put the plasticines on the water and observe if they float or sink.

• 1. Ball-shaped plasticine = float

  2. Bowl-shaped plasticine = sink

• 1. Ball-shaped plasticine = sink

  2. Bowl-shaped plasticine = sink

• 1. Ball-shaped plasticine = sink

  2. Bowl-shaped plasticine = float

• 1. Ball-shaped plasticine = float

  2. Bowl-shaped plasticine = float

The ( shape / colour ) of an object affect whether it can float on water.

• shape

• colour

Observe how the shape of the water surface on the coin changes and draw it in the picture below.

As we drop more and more water on the coin, the water forms a dome shape with a curved surface due to ______ _______.

The glove is tight against the skin in water because of __________.

How far does the water shoot out of the holes reach? Draw it in the picture.

Poke three holes in a plastic bottle at different heights and cover them with tape. Fill the bottle with water and remove the tapes on the bottle. What is the difference between A B and C?

• A shoots the farthest, B the second and C the least far.

• B shoots the farthest, C the second and A the least far.

• C shoots the farthest, B the second and A the least far.

• B shoots the farthest, A the second and C the least far.