an atom with more protons than electrons, OR an atom with more electrons than protons.

an atom with more electrons than protons.

an atom with more protons than electrons.

Which of the following is true about enzymes?

They lower the activation energy of a reaction.

Which of the following is NOT a reason why carbon is important for life?

Carbon can form graphite and diamonds.

Carbon can form up to four bonds.

Carbon atoms can form chains or rings.

Temperature is a measurement of

the amount of matter in an object.

the amount of energy stored in chemicals.

Identify each of the following examples as either a physical change or a chemical change.

Gasoline powering a car’s engine

running a tree branch through a wood chipper

Match the type with the clue.

a pure substance made of two or more chemically combined elements

a substance that produces hydrogen ions in solution

a substance that produces hydroxide ions in solution

the smallest part of a covalent compound

Match the type with the clue.

the physical stuff that makes up the universe

a pure substance made of only one kind of atom

the smallest individual part of an element

the tendency of energy to spread out

How do matter and energy flow differently?

Energy flows in one direction, matter is recycled

Matter flows in one direction, Energy is recycled

Energy and Matter are both recycled

Energy and Matter both flow in one direction

How does blowing up a balloon help prove that air is matter?

It shows that air takes up space.

It shows that air has kinetic energy.

It shows that air contains oxygen.

What will most likely happen if an appropriate enzyme is added to a chemical reaction?

The reaction rate will increase.

The equilibrium of the reaction will be maintained.

The reaction rate will decrease.

The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements?

Enzymes function best at a specific temperature.

The body needs to be warm to prevent hypothermia.

The body is kept relatively warm to prevent too much enzyme action.

There is no connection between the two statements.

Water is essential for life. Its special properties make water the single most important molecule in plant life. Which of the following properties of water enables it to move from the roots to the leaves of plants?

Water exhibits cohesive behavior.

Water is able to moderate temperature.

BJU Biology Chapter 2 Review

9th Grade

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66 Qs

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Quiz

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Science

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9th Grade

•

Practice Problem

•

Hard

•

NGSS

HS-PS1-4, HS-LS1-6, HS-LS1-1

+19

Standards-aligned

Melissa Norwood

Used 9+ times

FREE Resource

66 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The physical stuff that makes up everything in the universe is known as

matter.

mass.

energy.

elements.

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the graphs above, which reaction would be best helped by a catalyst?

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the graphs above, which reaction(s) is (are) endothermic?

Tags

NGSS.HS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the graphs above, which reaction diagram shows the most activation energy?

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the graphs above, which reaction diagram shows the most activation energy?

Tags

NGSS.HS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the graphs above, which reaction diagram shows the least activation energy?

Tags

NGSS.HS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the graphs above, which reaction(s) is (are) exothermic?

1, 2, & 3

1 & 2

2 & 3

1 & 4

Tags

NGSS.HS-PS1-4

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BJU Biology Chapter 2 Review

66 questions

The physical stuff that makes up everything in the universe is known as

According to the graphs above, which reaction would be best helped by a catalyst?

According to the graphs above, which reaction(s) is (are) endothermic?

According to the graphs above, which reaction diagram shows the most activation energy?

According to the graphs above, which reaction diagram shows the most activation energy?

According to the graphs above, which reaction diagram shows the least activation energy?

According to the graphs above, which reaction(s) is (are) exothermic?

When a peptide bond forms between two amino acids, __________ is released.

Which of the following is not a part of a nucleotide?

The main purpose of carbohydrates for living things is for

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