CASPP

According to this model, what are the products made from the chemical reaction?

• Fe

• CuSO₄

• Cu

• FeSO₄

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• 96 grams

• 25 grams

• 71 grams

• 192 grams

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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-PS1-2

NGSS.MS-PS1-5

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-PS1-2

NGSS.MS-PS1-5

Use the graphs and the partial food web to predict the changes in the sea urchin population as the kelp population INCREASES. What will happen to the sea urchin population?

• Sea urchin population increases

• Sea urchin population decreases

• Sea urchin population remains steady

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

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. 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

According to this model, is the chemical reaction balanced?

• Yes

• No

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

According to this "Key" that models atoms and molecules, an example of an atom is

• Fe

• FeSO₄

• CuSO₄

Tags

NGSS.MS-PS1-1