Science Standards

Based on the section of the periodic table shown above, which statement BEST describes the element Carbon?

• Carbon is a metal with an atomic number of 6

• Carbon is a metal with an atomic number of 12

• Carbon is a nonmetal with an atomic number of 6

• Carbon is a nonmetal with an atomic number of 12

Tags

NGSS.MS-PS1-1

8.5B (R) - Which of the follwing lists contains atoms with the highest reactivity?

• He, Ne, Ar

• F, Cl, Br

• Zn, Cd, Hg

• C, Si, B

A student mixes two solutions, planning to produce carbon dioxide. Which of the following is the BEST evidence that a chemical reaction is producing gaseous carbon dioxide?

• color change

• formation of a solid (precipitate)

• temperature change

• formation of bubbles

Tags

NGSS.MS-PS1-2

Limestone is a common form of calcium carbonate. When limestone is subjected to high heat, it becomes calcium oxide and releases carbon dioxide gas. This change in limestone at a given temperature is an example of-

• a physical change like the melting of ice

• a chemical change like the rustinf of iron

• an igneous change like the melting of rock in a volcano

• a reversible change such as hardening melted butter

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

A sheet of notebook paper lying motionless on a table and not touched by an outside force MOST likely remain motionless because?

• balanced forces exerted by gravity and the table keep the paper motionless

• an unbalanced force is exerted by the table to keep the paper motinless

• balanced forces exerted by gravity and the air keep the paper motionless

• an unbalanced force is exerted by the air to keep the paper motionless

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which of the following statements is correct regarding the speed and velocity of an object ?

• I, III, IV only

• I only

• III only

• I & II only

Tags

NGSS.MS-PS3-1

The air friction acting on a baseball causes it to curve as it is pitched to the catcher. This is a result of-

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• The Universal

Two trains are traveling down a track. Train A has more mass than Train B. What will happen when the two trains attempt to stop with the same force at the Train station?

• The train with the smaller mass will require less time to stop than the rain with the larger mass

• The train with the larger mass will require less time to stop than the train with the smaller mass.

• The train with the smaller mass will take longer to stop than the train with larger mass

• The train with a larger mass will have less inertia than the rain with the smaller mass.

Tags

NGSS.MS-PS2-2

In the Bohr modl of an atom (image above), protons are represented in blue, neutrons red and electrons are green. How reactive is the element that this model represents?

• Non- Reactive because the model is showing two complete electron shells

• Highly reactive because the model has two complete electron shells

• Non-reactive because the model is showing only one valence electron

• Highly reactive because the model is showing only one valence electron

When an object is acted on by unbalanced forces, the object will

• continue in the same direction

• continue at the same speed

• accelerate

• come to a stop

Tags

NGSS.MS-PS2-2