Unit 2 Review

Matter is anything that

• takes up space but does not have mass

• is important

• takes up space and has mass

• does not have mass but takes up space

Which of the following is not a physical property

• buoyancy

• boiling point

• viscosity

• reactivity

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

• thermometer reads a drop in temperature during mixing chemicals

• A firework exploding

• molding bread

• shattering your phone screen

Which of the following is a chemical change?

• ice cube melting

• nail rusting

• the length x width x height of water decreases

• sugar dissolving

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

An element is

• a. mixture of substances that looks uniform through out.

• a pure substance composed of only 1 type of atom ex) Hydrogen (H)

• a mixture of substances that can be easily identified

• a pure substance made up of two or more atoms chemically bonded together ex) NaCl

which of the following is NOT a compound?

• Table Salt (NaCl)

• Carbon Dioxide (CO₂)

• Oxygen Gas (O₂)

• Glucose (C₆H₁₂O₆)

Tags

NGSS.MS-PS1-1

Which of the following is a homogeneous mixture?

• salad

• chocolate chip cookies

• trail mix

• air

Which of the following is a heterogeneous mixture?

• pond water

• oxygen

• coffee

• brass (a blend of metals)

Ductility

• ability to float

• ability to bend with out breaking

• liquid's resistance to flow

• ability to be woven into wire

Malleability

• ability to be woven into wire

• length x width x height

• a substance's ability to bend with out breaking

• mass per unit volume