8th Science Spring Final Practice

What is chemistry?

• The study of living organisms

• The study of matter and its interactions

• The study of celestial bodies

• The study of ancient civilizations

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

What is matter?

• Anything that has mass and takes up space

• A type of energy

• A form of light

• A chemical reaction

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

What is considered the building block of matter?

• Molecules

• Atoms

• Cells

• Compounds

Tags

NGSS.MS-PS1-1

When two or more substances are physically blended but not chemically bonded, this is a what?

• Compound

• Element

• Mixture

• Solution

What are the two types of mixtures and what are examples of each?

• Homogeneous and heterogeneous; saltwater and salad

• Solid and liquid; ice and water

• Chemical and physical; rust and melting

• Organic and inorganic; sugar and plastic

What is a substance?

• A form of energy

• A type of mixture

• Matter with a uniform and definite composition

• A chemical reaction

Tags

NGSS.MS-PS1-4

What two things come together to make a solution?

• Solvent and solute

• Atom and molecule

• Element and compound

• Solid and liquid

What is a compound/molecule?

• A single atom

• A mixture of elements

• A substance formed when two or more elements are chemically bonded

• A type of energy

Tags

NGSS.MS-PS1-1

How can you separate a heterogeneous mixture?

• By chemical reaction

• By physical means like filtration

• By heating until it melts

• By adding more substances

What is the difference between a physical and a chemical change?

• Physical change alters the substance's identity, chemical change does not

• Chemical change alters the substance's identity, physical change does not

• Both changes alter the substance's identity

• Neither change alters the substance's identity