Matter and It's Changes Qz

Which of the following best describes a compound?

• A substance made of two or more different elements chemically combined

• A mixture of two or more substances physically combined

• A single type of atom

• A process of separating mixtures using a filter

What is a heterogeneous mixture?

• A mixture where the different parts can be seen and are not evenly mixed

• A mixture where everything looks the same throughout

• A pure substance made of only one element

• A liquid that dissolves other substances

Which of the following is an example of a physical change?

• Melting ice into water

• Burning wood

• Rusting iron

• Baking a cake

What is the main difference between a solid and a gas?

• A solid has a definite shape and volume, while a gas has neither

• A solid can flow, but a gas cannot

• A solid is always colder than a gas

• A solid is always heavier than a gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following best describes a solution?

• A homogeneous mixture where one substance is dissolved in another

• A mixture where the parts can be easily separated by hand

• A pure element in liquid form

• A solid that cannot be dissolved

Which method would you use to separate sand from water?

• Filtration

• Chromatography

• Distillation

• Evaporation

Which of the following is an example of a chemical change?

• Burning paper

• Melting ice

• Boiling water

• Breaking glass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is matter?

• Anything that has mass and takes up space

• A type of chemical reaction

• A process of separating mixtures

• A type of energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Which of the following is an example of a pure substance that is an element?

• HCl (aq)

• Na (s)

• Soil

• CH₂(OH)₂ (aq)

Which of the following is a heterogeneous mixture?

• C₁₁H₂₂O₁₁ (s)

• Soil

• KBr (s)

• Cl₂ (g)