Matter

What is the difference between a substance and mixture?

• A substance can be separated into its components, while a mixture cannot.
• A mixture has a fixed composition, while a substance can vary in its properties.
• A substance is always a solid, while a mixture can be a liquid or gas.
• A substance has a uniform composition, while a mixture consists of two or more substances that retain their individual properties.

What is the simplest form of matter?

• Compound
• Molecule
• Atom
• Element

Lisa accidentally poured water into her collection of rocks. How can she separate the rocks from water?

• Use a sieve or strainer to separate the rocks from the water.
• Pour the mixture into a blender.
• Use a magnet to attract the rocks.
• Let the rocks dissolve in the water.

Which of the following is an example of a homogenous mixture?

• Oil and water
• Sand
• Salt water
• Fruit salad

Which of the following is an example of an element?

• Carbon Dioxide
• Air

• Hydrogen
• Water

Which of the following is an example of a suspension?

• Air
• Sugar solution
• Muddy water
• Saltwater

Which is an example of a compound?

• Oxygen

• Water

• Gold

• Air

Tags

NGSS.MS-PS1-1

Jay cut a metal alloy in half. He noticed that the size of the alloy changed. What happened to the alloy that Jay cut?

• The alloy undergone physical change.

• The alloy undergone chemical change.

• The alloy became a liquid.
• The alloy turned into a gas.

Melanie was cooking sugar to turn into caramel. Unfortunately, she did not notice that the sugar started to burn and produced a black substance. What happened to sugar?

• The sugar undergone physical change.

• The sugar undergone chemical change.

• The sugar turned into a mixture.

• The sugar crystallized into solid chunks.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What type of change is evaporation?

• Evaporation is a chemical change.
• Evaporation is a nuclear change.
• Evaporation is a biological change.
• Evaporation is a physical change.

Tags

NGSS.MS-PS1-4