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Atoms and Molecules

Authored by Travis Sims

Science

6th - 8th Grade

NGSS covered

Used 65+ times

Atoms and Molecules
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

An element is

Made up of different types of atoms

Made up of the same type of atoms

none of the above

all of the above

Answer explanation

An element is defined as a substance that consists entirely of one type of atom. Therefore, the correct answer is 'Made up of the same type of atoms', as elements cannot be composed of different types of atoms.

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Gold is an element

True

false

none of the above

All of the above

Answer explanation

Gold is indeed an element, classified as a chemical element with the symbol Au and atomic number 79. Therefore, the correct answer is True.

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The three states of matter you find on the periodic table are

Iron gold and silver

solid liquid and gas

freezing melting condensation

non of the above

Answer explanation

The three states of matter are solid, liquid, and gas. These terms describe the physical forms substances can take, while the other options refer to specific materials or processes, making 'solid, liquid, and gas' the correct choice.

Tags

NGSS.MS-PS1-4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Atoms are composed of

Nothing, they are the smallest unit

molecules

protons neutrons and electrons

all of the above

Answer explanation

Atoms are made up of protons, neutrons, and electrons, which are the fundamental particles that compose them. Therefore, the correct answer is 'protons neutrons and electrons'.

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

two or more atoms that bind together form

an element

a molecule

atoms

none of the above

Answer explanation

When two or more atoms bond together, they form a molecule. An element consists of only one type of atom, while 'atoms' refers to the individual units themselves. Therefore, the correct answer is a molecule.

Tags

NGSS.MS-PS1-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

CO2 is an element

true

false

both

none

Answer explanation

CO2, or carbon dioxide, is a compound made of two elements: carbon (C) and oxygen (O). Therefore, the statement that CO2 is an element is false.

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

CO2 is a molecule

true

false

none

both

Answer explanation

CO2, or carbon dioxide, is a molecule composed of one carbon atom and two oxygen atoms. Therefore, the statement that CO2 is a molecule is true.

Tags

NGSS.MS-PS1-1

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