Matter

Check all that apply. The particles on the outside revolving around the nucleus ...

• have a negative charge.

• are protons.

• have a minus sign as its symbol.

• are electrons.

Tags

NGSS.MS-PS1-1

Check all that apply.

Letter A...

• is an electron.

• is a proton.

• has a positive charge.

• has a negative charge.

Tags

NGSS.MS-PS1-1

What is the most abundant element in the human body, earth’s crust and oceans?

• Nitrogen

• Oxygen

• Silicon

• Hydrogen

Tags

NGSS.MS-PS1-1

Check all that apply. The diagram shows a square from the periodic table. The 79 is...

• its atomic mass.

• its atomic number.

• the number of protons.

• the number of neutrons.

The word that BEST describes the diagram below is...

• atom.

• mixture.

• compound.

• proton.

Tags

NGSS.MS-PS1-1

The atoms of different elements are held together by...

• chemical bonds.

• the nucleus.

• atomic mass.

• solutions.

Tags

NGSS.MS-PS1-1

Use the periodic table to answer the following question. Which element below has the most protons?

CLICK ON THE PICTURE TO SEE IT LARGER.

• carbon

• hydrogen

• nitrogen

• oxygen

Tags

NGSS.MS-PS1-1

Which atom below has the LEAST protons?

CLICK ON THE PICTURE TO SEE IT LARGER.

• Hydrogen

• Helium

• Carbon

• Silver (Ag)

Tags

NGSS.MS-PS1-1

The building block of all mater is the...

• compound

• atom

• mixture

• molecule

Tags

NGSS.MS-PS1-1

Check all the statements that are TRUE.

• This is a mixture.

• This is an example of a compound.

• This diagram shows a molecule of water.

• Numbers of atoms on the left of = sign must be the same number of atoms on the right side of = sign.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5