Physical Science S2 Final Exam Review

What typically starts the scientific process?

• Experimentation

• Hypothesis

• Observation/Question

• Conclusion

Tags

NGSS.MS-LS1-1

Jamie wants to know how rainwater affects the growth of plants. Which of the following is a correctly formatted hypothesis for this experiment?

• Plants grow taller with rainwater.

• Rainwater makes plants grow.

• If plants receive more rainwater, then they will grow taller.

• The amount of rainwater affects plant growth.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

In a lab report, where would Jamie record the height measurements of her plants?

• Conclusion

• Hypothesis

• Data

• Introduction

Which section of a lab report interprets the measurements and observations to determine the outcome of the experiment?

• Materials

• Procedure

• Data

• Conclusion

Tags

NGSS.MS-PS1-2

What is an element?

• A mixture of different atoms

• A pure substance made of only one type of atom

• Two or more elements chemically bonded

• A substance that can be easily separated

What is a compound?

• A substance that is not uniform throughout

• A pure substance made of only one type of atom

• Made of two or more elements chemically bonded

• A substance that maintains its individual properties

What is the key difference between a heterogeneous mixture and a homogeneous mixture?

• One is a solid, and the other is a liquid.

• One is pure, and the other is not.

• One is uniform throughout, and the other is not.

• One is made of elements, and the other is made of compounds.

Which of the following is an example of a heterogeneous mixture?

• Saltwater

• Air

• Salad

• Sugar dissolved in water

What does the law of conservation of mass state?

• Mass can be created during a chemical reaction.

• Mass is destroyed during a chemical reaction.

• Mass is not created or destroyed in a chemical reaction.

• The total mass of reactants is always less than the total mass of products.

Tags

NGSS.MS-PS1-5

If particles move faster, what happens to their kinetic energy?

• It decreases.

• It stays the same.

• It increases.

• It becomes potential energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5