California Science Test

Leah combined Fe and CuSO₄ and measured the masses before and after a reaction. What is TRUE about the total mass of the reactants and the total mass of the products?

• They are the same (96 grams)

• They are different

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Leah conducts an investigation by mixing Fe with CuSO₄ and makes a model to help explain why the total mass did not change. Leah's model can also be used to show that a chemical reaction occurred because the products

• are the same size as the reactants

• have the same composition as the reactants

• are at different states of matter compared to the reactants

• have differently arranged atoms compared to the reactants

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

A student conducts 5 trials to investigate factors affecting the formation of impact craters. The student drops a marble into a box with fine powder. Analyze the results in the graph pictured. Because the mass is 40g in each trial, mass is a...

• constant

• control

• dependent variable

• independent variable

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

A student conducts 5 trials to investigate factors affecting the formation of impact craters and here are the results. What is true about the results of the experiment?

• As the speed of the marble increases, the depth of the crater increases

• As the speed of the marble increases, the depth of the crater decreases

• As the speed of the marble increases, the depth of the crater stays the same

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

A student conducts 5 trials to investigate factors affecting the formation of impact craters and here are the results. Which statement BEST describes the results of the investigation?

• The kinetic energy of the marble just before impact is proportional to the depth of the crater it forms

• The kinetic energy of the marble just before impact is proportional to the mass of the marble

• The depth of the crater is proportional to the mass of the marble

• The depth of the crater is proportional to the mass of the marble

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Read the question in the photo. Select a moon location in the model that supports the explanation that the New Moon phase explains why the disk becomes a ring.

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS1-1

Leah conducts two trials to mix chemicals together. What is true about the products of the reaction?

• W is a solid substance

• X is a liquid substance

• Z ia s white solid substance

• Y is a solid substance

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

According to this model, is the chemical reaction balanced?

• Yes

• No

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

According to this model, Fe, or Iron, is represented by

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

How many atoms make up CuSO₄ ?

• 1

• 4

• 5

• 6

Tags

NGSS.MS-PS1-1