LEAP Review Atoms Molecules Synthetic Materials

Front

What is a molecule?

Back

Has two or more different atoms

Answer explanation

A molecule consists of two or more different atoms bonded together, which distinguishes it from an element that contains only one type of atom. Therefore, the correct choice is 'As two or more different atoms'.

Tags

NGSS.MS-PS1-1

Front

Is gold an element?

Back

True

Answer explanation

Gold is indeed an element, classified as a metal on the periodic table. Therefore, the correct answer is True.

Front

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

Back

solid liquid and gas

Answer explanation

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

Tags

NGSS.MS-PS1-4

Front

Atoms are composed of?

Back

protons, neutrons, and electrons

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

Front

Two or more atoms that bind together form

Back

a molecule

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

Front

Is CO2 a molecule?

Back

True

Answer explanation

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

Tags

NGSS.MS-PS1-1

Front

How many carbon atoms are there in a methane molecule?

Back

1

Answer explanation

A methane molecule (CH₄) contains one carbon atom. The correct answer is 1, as methane consists of one carbon atom bonded to four hydrogen atoms.

Tags

NGSS.MS-PS1-1

Front

How many hydrogen atoms are there in a water molecule?

Back

2

Answer explanation

A water molecule (H2O) consists of two hydrogen atoms and one oxygen atom. Therefore, the correct answer is 2 hydrogen atoms.

Tags

NGSS.MS-PS1-1

Front

Which thing in this picture represents a gas? ice cubes, bubbles , soda

Back

bubbles

Answer explanation

Bubbles represent gas because they are formed by gas escaping from a liquid, like in soda. Ice cubes are solid, and soda is a liquid. Therefore, the correct answer is bubbles.

Tags

NGSS.MS-PS1-4

Front

This is anything that has mass and takes up space (meaning it has a volume).

Back

matter

Answer explanation

The correct answer is 'matter' because it is defined as anything that has mass and occupies space, which aligns with the description provided in the question.