CHANGING MATTER

1. What are physical changes?

• A physical change is a change in the kinds of matter.

• A physical change is a change in how matter looks.

• A physical change is a change in properties of matter.

What are the examples of PHYSICAL CHANGE?

• When you tear paper. The paper is in pieces, but it is still paper.

• Food may spoil as it gets old.

• Matter can change is state. Water change from liquid to ice

1. What are chemical changes?

• Chemical changes is a change in how matter looks.

• Chemical changes cause matter to turn into a new look . The properties of the new matter are the same.

• Chemical changes cause matter to turn into other kinds of matter. The properties of the new matter are different.

1. Which are examples of chemical change

• Baking causes a change. The new food may taste different from the things used to make it. It may even be a new color.

• A burning log goes through a change. The log starts as wood. Fire turns it to ash. Some gas also forms.

• When you tear paper, you make a physical change. The paper is in pieces, but it is still paper.

• Food may spoil as it gets old. It may change color. It may smell or taste bad.

• Iron can turn to rust if its left outside in the wind and rain.

1. What are the signs of a chemical change?

• light and heat

• color change

• gas formation

Which are examples of Chemical change?

• A burning candle gives off light and heat.

• Building sand castle from sand

• A gas was formed by the change that happened when two kinds of matter were mixed.