Mixtures and Solutions

Volume and Mass

100

This is the measure of the space that a three-dimensional object takes up.

Volume

200

This is the amount of matter in an object.

Mass

300

Mass is commonly measured in ___________.

kilograms (kg) or grams (g)

400

 Capacity is usually measured in ___________.

Litres (L) or millilitres (mL)

500

This is the measure of how much an object or container can hold.

Capacity

Mixtures

100

Everything that occupies space (has mass and volume) is called ______________.

Matter

200

A ________ __________, such as table salt, has only one kind of matter in it.

pure substance

300

A _________ ________ is a mixture in which you can see all the different parts.

mechanical mixture or heterogeneous mixture

400

This is a mixture, such as vinegar, in which you cannot see the different parts.

solution or homogeneous mixture

500

If a mixture has a concentration of 76g/350mL, what is its concentration per 100mL?

21.7g/100mL

Separating Mixtures

100

This separation technique involves separating dust particles from the air.

Filtration

200

This separation technique was used by farmers in the 1800s to separate wheat kernels from the chaff.

Winnowing

300

This separation technique could be used to separate recycling by taking the metals out of the plastics.

Magnetism

400

Think about the properties of rocks. Name 3 categories that you could separate them into?

colour, shape, texture, size, weight

500

A ____________ is a device that spins a set of test tubes at high speed. This throws the substances that are not dissolved to the bottom of the test tubes.

centrifuge

Dissolving

100

This is the part of the mixture that does the dissolving.

solvent

200

This is the part of the mixture that gets dissolved.

Solute

300

List the 3 ways to speed up dissolving.

Stirring

Heating

Smaller pieces

400

A _________ solution has small amounts of solute in a solvent.

Dilute or Unsaturated

500

A ___________ solution is a solution that contains more solute than it would normally be able to dissolve at a certain temperature.

Supersaturated

Safety and Processing

100

Label any container before you put __________ into it.

chemicals

200

Tie back loose _________ and roll up your sleeves.

hair or clothing

300

Solutions of two or more metals are called _________.

Alloys

400

This means that substances do not break down when thrown away.

biodegradable

500

_________ and __________ are the minerals in water that collect to make Hard water.

calcium and magnesium