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Questions and Answers

Which two gases are soluble in water?

Methane and steam

Air and oxygen

Oxygen and steam (correct)

Carbon dioxide and nitrogen

Which of the following objects will float on water?

Lemon

Coin

Ice

Cork (correct)

What are two materials opaque objects are made from?

Wood and rubber (correct)

Glass and plastic

Aluminum and paper

Diamond and crystal

Which of the following objects are seen but not clearly?

Coin Signup and view all the answers

Which of the following is not soluble in water?

Salt Signup and view all the answers

Which object does not sink in water?

Baking powder Signup and view all the answers

$1$. What is the weight of air?

$0$ grams Signup and view all the answers

$2$. Which gas is commonly used in balloons to make them float?

$\text{Methane}$ Signup and view all the answers