Bio I - Module 6 Unit Review

The smallest unit of matter is the

• atom

• cell

• nucleus

• element

Electrons have a _____ charge.

• neutral

• positive

• negative

• orbital

Tags

NGSS.MS-PS2-3

Which subatomic particle of an atom has a positive charge?

• neutrons

• protons

• electrons

• electron cloud

The center of an atom is called the ____.

• valence shell

• electron cloud

• core

• nucleus

Tags

NGSS.HS-PS1-8

How many atoms of oxygen are there in H₂SO₄?

• 1

• 2

• 4

• 8

Tags

NGSS.HS-PS1-7

How many atoms of oxygen are there in 2(H₂SO₄)?

• 1

• 2

• 4

• 8

Water's ability to bond/stick to itself is called ______

• adhesion

• cohesion

• polarity

• surface tension

Tags

NGSS.HS-ESS2-5

Water's ability to bond/stick to other surfaces is called ______

• adhesion

• cohesion

• polarity

• surface tension

A water molecule has an unequal distribution of charges. This makes water a ____ molecule.

• weak

• hydrophobic

• polar

• ionic

Tags

NGSS.HS-ESS2-5

Adding soap to water _____ the surface tension of water. Meaning it makes the bonding between water molecules break easier.

• increases

• decreases

• neutralizes

• strengthens