Topic 4B

All matter is composed of parts that are too

__________ to be seen without magnification.

• Large

• Small

• Heavy

• Spread out

8.3- True or false? A mixture is formed when 2 or more substances combine and the substances keep their physical properties and CANNOT be separated easily.

• True

• False

8.3- True or false? Mixtures can be separated by their physical properties

• TRUE

• FALSE

8.3- Select all tools that can be used to separate different particle sizes in a mixture? For example, rocks and sand?

• strainer

• sieve

• magnet

• glue

8.3- Select all tools that can be used to separate mixtures by shapes? For example, blocks that are triangles and squares?

• strainer

• sieve

• sense of sight

• sense of touch

8.3- Select all tools that can be used to separate mixtures by color? For example, separate green peppers from red peppers?

• strainer

• sieve

• sense of sight

• sense of touch

8.3- Select the BEST tool that can be used to separate a mixture that contains iron fillings and gravel?

• strainer

• sieve

• magnet

• sense of touch

8.3- True or false? A solution is a type of mixture composed to two or more substances that evenly spread out and one of the substances dissolves in the other.

• TRUE

• FALSE

8.3- Select all of the following solutions that CAN be separated by EVAPORATION.

• air

• sugar and water

• salt and water

8.3- Select all of the following solutions that CANNOT be separated by EVAPORATION.

• air

• sugar and water

• jewelery