Unit 1 Test Review

A scientist wants to test if sunlight affects plant growth. What is the dependent variable?

• sunlight

• plant type

• plant growth

• soil type

Tags

NGSS.MS-LS1-5

A scientist wants to test if sunlight affects plant growth. What is the independent variable?

• sunlight

• plant type

• plant growth

• soil type

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Which variable is changed in an experiment?

• independent variable

• controlled variable

• dependent variable

• responding variable

What are the subatomic particles of an atom?

• Carbon, Hydrogen and Oxygen

• protons, neutrons and electrons

• nucleus, carbon and molecules

• water, carbon and oxygen

Tags

NGSS.HS-PS1-8

Which parts of the atom make up the nucleus? (Labeled b and c)

• Protons and Electrons

• Electrons and Neutrons

• Electrons only

• Protons and Neutrons

Tags

NGSS.HS-PS1-8

How many protons does Sodium have?

• 22.99

• 23

• 11

• Na

Tags

NGSS.HS-PS1-1

Which subatomic particle has a negative charge?

• Protons

• Neutrons

• Electrons

• The Nucleus

Which type of bond forms between water molecules? (Labeled #1)

• Covalent bonds

• Ionic bonds

• Hydrogen bonds

• Peptide bonds

Which property of water makes it such a great solvent? It is also called the Universal Solvent.

• Water's polarity

• Capillary action

• Cohesion

• Water's high specific heat

True or False: Water molecules attract (or dissolve) nonpolar molecules such as oil.

• True

• False