Matter

Imagine you could zoom in on a copper wire until you see its smallest building blocks. What are these fundamental units called?

• atoms

• cubes

• cells

• stars

Tags

NGSS.MS-PS1-1

What is the minimum number of atoms that a molecule can have?

• One atom

• Two atoms

• Three atoms

• Four atoms

Tags

NGSS.MS-PS1-1

Fill in the blanks with the correct options. As heat is ______ from the material, it reaches its ______ point and transitions into a liquid state.

Tags

NGSS.MS-PS1-4

Observe the diagrams below showing particles in various states. Which diagram illustrates the material with the highest density?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

Tags

NGSS.MS-PS1-4

A student conducted an experiment by adding various substances to a container of water. The table below summarizes the results observed. Identify which substances dissolved completely in water. You may choose more than one option.

• salt

• sand

• sugar

• oil

Tags

NGSS.MS-PS1-2

Identify the correct statement. Water is a remarkable substance because it can transition between all three states of matter (solid, liquid, gas) under Earth's typical temperature conditions. Observing the state of matter of water involves examining a ______ property of matter.

Tags

NGSS.MS-PS1-4

Which property changes if you add more of a pure substance?

• melting point

• boiling point

• mass

• density

Identify all correct statements. A molecule can consist of which of the following?

• multiple atoms

• a single molecule

• different elements

Tags

NGSS.MS-PS1-1

Choose the best answer for each blank. Changes in the temperature of a gas will affect its volume, pressure, and the average speed of its particles. When the temperature of a gas increases, its volume ___, its pressure ___, and the particles move faster.

Tags

NGSS.MS-PS1-4

Which characteristics of a substance do not vary with the amount of the substance present?

• Solubility

• Density

• Boiling point

• Melting point

• Mass