Shake It Review

What are the three states of matter?

• solid, liquid, water

• gas, solid, liquid

• solid, liquid, air

• air, water, soil

Draw a sketch to show how particles in solid, liquid and gas look like.

Is this a soluble or insoluble substance?

这是可溶物质还是不可溶物质？

Tea leaves cannot dissolve so it is ..............

Is this a soluble or insoluble substance?

这是可溶物质还是不可溶物质？

Sugar can dissolve so it is ..............

What is a milk alternative (another choice)?

• Cow milk

• Whole milk

• Soy milk

• Skim milk

How can we change matter from liquid to gas?

我们怎样才能将物质从液体变成气体？

• Heating the liquid

  加热液体

• Cooling the liquid

  冷却液体

How can we change matter from liquid to solid?

我们怎样才能将物质从液体变成气体？

• Cooling the liquid

  
  冷却液体

• Heating the liquid

  
  加热液体

Is toasting bread a physical change or a chemical change?

烤面包是物理变化还是化学变化？

• Physical change

• Chemical change

Melting chocolate is a ............ change.

Physical or chemical?

Is sand soluble or insoluble?

• Soluble

• insoluble