Is burning wood a chemical or physical change?

• chemical
• physical

Is glass breaking a chemical or phyiscal change?

• chemical
• physical

Is hammering wood together to build a house a chemical or physical change?

• chemical
• physical

Is a a rusting bicycle a chemical or physical change?

• chemcial
• physical

Are fireworks exploding a physical or chemical change?

• phyiscal 
• chemical

Is sqeezing organges to make orange juice a phyical or chemcial change?

• physical
• chemical

Baking a cake by mixing flour, sugar, chocolate powder, eggs, and milk, and then heating them in the oven.

• Chemical Change
• Physical Change

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties
• chemical properties
• liquid properties
• real properties

Sand and gravel may be separated from each other by using..

• a filter funnel
• a sieve
• an evaporating basin
• a distillation

The separation technique that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid is known as

• decanting
•  evaporation
• loading
• chromatography