STAAR Science Review

If the mass number of this chlorine atom is 36, how many neutrons does it have?

• 17

• 18

• 19

• can't be determined

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Q1. What is the best way to organize a project?

• A) Periods

• B) Groups

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• energy levels
• valence electrons
• protons
• neutrons

The masses of four vehicles and the net forces acting on them as they enter a highway are recorded in the table below. Which vehicle has the greatest acceleration as it enters the highway?

• Sedan

• Coupe

• SUV

• Truck

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NGSS.MS-PS2-2

Sometimes tectonic plates do not move easily past one another, and the plates become stuck. Forces build up, and when the plates finally move, tension is released, as shown below. The sudden movement of the plates is caused by -

• the mass of the plates

• the weight of the plates

• unbalance forces

• gravitational force

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NGSS.MS-ESS2-3

According to Newton’s Law of Inertia, which of the following objects will change its motion?

• A bike rider on a smooth and level road, pedaling at a constant rate.

• A train pulling on another train, each with the same amount of force.

• A chair sitting on the floor with balanced forces acting in opposite directions.

• A ball rolling across the floor with friction acting in the opposite direction.

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The most potential energy is at

• a

• b

• c

• d

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Approximately how much time passes between the New moon and the Full moon?

• One month

• Three days

• Two weeks

• 24 hours

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Q1. What is the type of tide that occurs when the sun and moon are aligned?

• A) spring tide

• B) neap tide

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NGSS.MS-ESS2-4

The image illustrates what type of boundary?

• Divergent

• Convergent

• Transform

• Emergent