Chemical and Physical Changes

Front

Which is a way that a piece of paper can go through a chemical change? Options: fold the paper in half, soak the paper in water, burn the paper with fire, cut the paper with scissors

Back

burn the paper with fire

Front

Which of these is an example of a new substance being formed? Options: a nail rusting, a wall being painted, water changing to steam, paper being folded

Back

a nail rusting

Front

Which best describes a chemical change in paper? Options: filing paper, mailing paper, burning paper, cutting paper in half

Back

burning paper

Front

Which is an example of a chemical change? Options: baking a cake, freezing water, crushing a can, breaking an egg

Back

baking a cake

Front

Which example best describes a physical change? Options: iron rusting, charcoal burning, an ice cube melting, a marshmallow burning

Back

an ice cube melting

Front

When coffee is poured into a cup of ice, the ice begins to melt and mix with the coffee. Which statement best describes this change?

Back

The ice melting is a physical change because the water may be frozen again.

Front

Which statement best describes why baking a cake is an example of a chemical change? Options: The process takes place in an oven., The process requires heat energy., The process cannot be reversed., The process can be repeated.

Back

The process cannot be reversed.

Front

Stanley left an ice cube on his kitchen counter. An hour later, Stanley observed that the ice cube melted. Which statement best describes this change?

Back

Ice melting is a physical change because it may be reversed.

Front

Which of the following is NOT an example of a physical change? Options: crumpled paper, pencil sharpening, shrunken clothing, sour milk

Back

sour milk

Front

When you break a cracker into pieces it is a

Back

Physical change