ACAP

Explain why the model of this chemical reaction obeys the Law of Conservation of Matter.

• because there are the same number of atoms of each element shown on both sides

• because they both start and end with diatomic (two-atomed) molecules

• because they both start and end with the same types of particles

• because they both start and end with two sets of particles

Tags

NGSS.MS-PS1-5

How many protons does Hydrogen have?

• 1

• 2

• 0

• 3

If there are 2 grams of product produced by the chemical reaction, how many grams of reactant were consumed?

• 0 grams

• 1 gram

• 2 grams

• 4 grams

Tags

NGSS.MS-PS1-5

When Holly injures her shoulder playing baseball, she uses an instant ice pack to reduce the swelling. She breaks the inner, activator portion of the instant cold pack releasing the solid urea into the surrounding water. What process does Holly observe as she uses the cold pack?

• Urea absorbs and releases heat energy into the surroundings.

• When the urea dissolves it absorbs heat and the cold pack gets colder.

• The urea causes the surroundings heat up as the cold pack releases energy.

• As the urea mixes in the water it releases heat making the cold pack colder.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

List the steps of the scientific method

d

e

f

c

b

a

Conduct experiment

Analyze results

Ask a question

Communicate results

Form a hypothesis

Draw conclusions

Tags

NGSS.MS-PS2-2

Select all of the examples of mixtures

• lemonade

• iced tea

• sugar

• saltwater

• aluminum oxide

If you slow the motion of water molecules down, they are more likely to become

• a gas

• hotter

• colder

• absorbed

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

According to the electromagnetic spectrum, Gamma rays have the shortest wavelength. Therefore, Gamma rays have ______________ frequency.

• highest

• lowest

• undetermined

• random

Tags

NGSS.HS-PS4-1

A remote control only works when it is pointed at the television. What is the best explanation for this?

• The remote control has a weak signal and will only work over short distances.

• The remote control transmits information at the speed of light to the television.

• The remote control transmits information that is encoded and the television decodes it.

• The remote control transmits information through waves, such as infrared waves, to the television.

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-3

Identify the distance labeled from A to B. Explain what could be done to the note played on an instrument to change that distance.

• From A to B is known as the wavelength and changing the pitch of the note will change its length.

• From A to B is known as the amplitude and changing the loudness of the note will change its length.

• From A to B is known as the wavelength and changing the amplitude of the note will change its length.

• From A to B is known as the wave height and changing the amplitude of the note will change its length.

Tags

NGSS.MS-PS4-1