Which of the following involves a change in chemical properties?

• Boiling water to make steam

• mixing vinegar and baking soda to make bubbles of CO₂

• melting a bar of solid gold to make liquid gold

• tearing a piece of paper into smaller pieces

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

If you are given 2 unknown samples of gray metals, how can you use physical properties to determine if they are the same?

• you can use their masses

• compare their densities

• compare their ability to react with acid

• you can identify the elements that they are made of

How are solids different from liquids?

• Solids have a definite mass, liquids do not

• Solids have a definite shape but liquids do not

• Solids have a lower density than liquids do.

• Solids have a greater volume than liquids do.

Tags

NGSS.5-PS1-3

A student has sand, water, and chalk. Which 2 could the students combine to make a mixture?

• Only water and chalk can form a mixture.

• Only water and sand can form a mixture.

• Only chalk and sand can form a mixture.

• Any 2 of the 3 together can form a mixture.

Where are protons and neutrons located?

• outside the nucleus

• inside the electron cloud

• inside the nucleus

• inside the ion cloud

Which of the following is classified as a compound?

• Pb₂

• CO₂

• Na

• H₂

Tags

NGSS.MS-PS1-1

Which of the following is NOT a physical property of matter?

• color

• density

• acidity

• solubility

______ means that a solid can dissolve into water or another liquid.

• oxidation

• pH

• solubility

• melting

Which of the following is a chemical property of matter?

• weight

• combustibility

• odor

• electrical conductivity

A piece of chalk becomes shorter as it is used. Which is not true of the shorter piece of chalk?

• its mass has changed

• its shape has changed

• its physical properties have changed

• its chemical properties have changed