CAST Science 8 Practice Test 2

Which model correctly shows that the mass is conserved in the reaction? 

• 
• 
• 
• 

Tags

NGSS.MS-PS1-5

In this equation, the reactants are on the

• left of the arrow

• right of the arrow

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In this equation, the products are on the

• left of the arrow

• right of the arrow

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Because this model shows atoms connected by a chemical bond, you are looking at

• atoms

• single elements

• molecules or compounds

Tags

NGSS.MS-PS1-1

After the predator is introduced, which fish has a BETTER chance of surviving?

• light colored fish

• dark colored fish

• both light and dark have the same chance of surviving

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Why would the dark colored fish have a better chance of surviving after the new predator is introduced?

• The predator can move faster than this species of small fish

• The predator cannot see them as well as the fish of the light color

• The predator predicts where each fish will be

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Students are asked to make a claim about which design will be both break-resistant and keep the water hot for the longest time. Which claim best meets the two criteria?

• Bottle 1: It has an unbreakable steel lining.

• Bottle 2: It has a glass inner lining which is a better insulator

• Bottle 3: It has an unbreakable steel inner lining and a foam cover that will keep the water hot for the longest time.

• Bottle 3: It has glass inner lining and a foam cover that will keep the water hot for the longest time.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-1

Choose a claim that best agrees with the data.

• Mass does not affect the gravitational force between two objects

• Mass is the only variable that affects the gravitational force between two objects

• Distance is the only variable that affects the gravitational force between two objects

• Both mass and distance are variables that affect the gravitational force between two objects.

Tags

NGSS.MS-PS2-4

MATH REVIEW (EXPONENTS): Which is bigger?

• 2.6 x 10^-9

• 6.5 x 10^-10

• 1.0 x 10^-8

Tags

NGSS.MS-PS2-4

This graph shows almond production in the US since 2012. What is true about the graph?

• Almond production has increased from 2014-2017

• Almond production has decreased from 2014-2017

• Almond production has stayed the same from 2014-2017