Exam 1 Review - Scientific Method, Water, and Macromolecules

Question 1

An inference is my opinion, or belief, about an observation.

Accepted Answer

True

Question 2

Catalyst help a chemical reaction by...

Accepted Answer

Lowering the activation energy

Question 3

In an experiment, what we change (or manipulate) is the...

Accepted Answer

independent variable

Question 4

When water molecules are attracted to a substance other than water, this is called...

Accepted Answer

Adhesion

Question 5

I feel like I will do well on this exam...

Accepted Answer

False, True

Question 6

The ocean's temperature doesn't fluctuate too much because of water's...

Accepted Answer

High heat capacity

Question 7

An observation is something...

Accepted Answer

you touch

Question 8

Nucleic Acids contain what?

Accepted Answer

Genetic Material

Question 9

Which of the following is not a chemical bond?

Accepted Answer

Savings

Question 10

Water molecules are joined to other water molecules by...

Accepted Answer

hydrogen bonds

Question 11

The formula for a carbohydrate is..

Accepted Answer

(CH2O)n

Question 12

Amino Acids are the monomer of which macromolecule?

Accepted Answer

Proteins

Question 13

Ice floats because...

Accepted Answer

It's less dense than water

Question 14

In an experiment, what we measure is...

Accepted Answer

the dependent variable

Question 15

In an experiment, the constant is...

Accepted Answer

something you don't change at all

Question 16

Ice is less dense than water because...

Accepted Answer

The molecules are further apart in ice than in water

Question 17

A control group is..

Accepted Answer

the group that we don't change or manipulate

Question 18

Which of the following is not a macromolecule?

Accepted Answer

Water

Question 19

A balanced chemical equation does not have an equal number of atoms on both sides.

Accepted Answer

False

Question 20

When water molecules are attracted to other water molecules, we call this...

Accepted Answer

Cohesion

Questions 20