4.3 Ch3 More about water (2)

Match the words with the correct meaning.

• 物體

• sink

• 重量

• weight

• 沉

• float

• 浮

• heavy

• 重的

• objects

Match the words with the correct meaning.

• 形狀

• bowl-shaped

• 空心部分

• water pressure

• 深度

• hollow parts

• 碗狀

• shape

• 水壓

• depth

Heavy objects ( always / do not always ) sink.

• always

• do not always

Light objects ( always / do not always ) float.

• always

• do not always

Which of the following can float on water?

• 
• 
• 

Water does not exert pressure on objects.

• True

• False

The water pressure at position ( A / B / C) is the highest.

• A

• B

• C

The water pressure at position C is the highest because the water is ...

• shallowest (最淺)

• deepest (最深)

To build a dam across the river, which of the following designs should be used?

• 
• 
• 

Which of the following can float on water?

• 
• 
• 
•