physical and chemical changes

Baking soda and vinegar combine to make carbon dioxide

• Chemical Change

• Physical Change

Which of the following are examples of a Chemical Change?

• Iron Rusting

• Gas Burning

• Breaking a glass

• Boiling water

• Burning Wood

Which of the following is a example of physical change ?

• burning of wood

• photosynthesis

• melting of ice-cream

• ripening of fruit

Which of the following is NOT an example of chemical change?

• sour milk

• burning wood

• breaking a pencil

• rust

Students observed a piece of iron change from shiny to rusty. What caused this change?

• a chemical reaction

• a heat reaction

• a cold reaction

• a physical reaction

Which is the best example of a new substance forming?

• lighting a match

• cutting a piece of paper

• popping a balloon

• hitting a nail with a hammer

Which is an example of a different substance being formed?

• glass breaking

• metal melting

• water freezing

• wood burning

A chemical change is a change in

• an item's properties such as size, shape, density

• an item that creates a new substance, releases light or heat

• an item's sound

• an item's look or state of matter

Which state of matter has particles that are tightly packed?

• liquid
• gas
• solid

What is the freezing point of water on the Celsius scale?

• 100 degrees

• 0 degrees

• 212 degrees

• 32 degrees