What are the building blocks of all matter?

• molecules

• atoms

• protons

• electrons

Tags

NGSS.MS-PS1-1

Where is most of the mass of the atom located?

• In the electrons

• In the electron cloud

• In the nucleus

• All of the answers are correct.

Tags

NGSS.MS-PS1-1

Which of the following are contained in the nucleus of most atoms? Check all that are correct.

• Electrons

• Carbon

• Protons

• Neutrons

• Ribosomes

Tags

NGSS.MS-PS1-1

The smallest unit of an element is a(n) ______________________.

• atom

• compound

• molecule

• none of the answers are correct.

An ordinary atom has an equal number of protons and electrons

• True

• False

Tags

NGSS.MS-PS1-1

Which of the following is true about molecules? Mark all that are correct.

• Molecules can be made of only one atom.

• Molecules can be made of only one type of element

• Molecules can be made of two or more elements

• Molecules cannot be made of three elements

Tags

NGSS.MS-PS1-1

Which of the following is NOT an example of a compound?

• C6H1206

• H20

• NH4

• O2

Tags

NGSS.MS-PS1-1

The law of Conservation of ___________ states that ______ cannot be created nor destroyed, but can be changed.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A change in the state of matter, creating a mixture(solution) with two substances, and changing the size of object are all _________ changes.

• Chemical

• Physical