SE1 Review - 8th Grade Science

The force of an object, with a certain mass, accelerating at a certain rate can be determined by using the equation: force = mass x acceleration. Which object would have the greatest force?

• A 5 kg object accelerating at 10 km/s²

• A 5 kg object accelerating at 20 km/s²

• A 20 kg object accelerating at 4 km/s²

• A 20 kg object accelerating at 3 km/s²

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NGSS.MS-PS2-2

Which of the following groups of elements from the periodic table contains only metals?

• Group 12

• Group 14

• Group 16

• Group 18

The formula for glucose is C₆H₁₂O₆. Which of the following statements is NOT true about glucose?

• Glucose is a compound containing 3 elements.

• Glucose is a compound containing 24 atoms.

• Glucose is an element containing 24 atoms.

• Glucose contains 6 carbon atoms.

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NGSS.MS-PS1-1

The product in the reaction shown is iron oxide: Fe₂O₃. 4Fe + 3O₂ --------> 2Fe₂O₃ How many atoms make up two molecules of iron oxide?

• 5

• 7

• 10

• 12

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NGSS.MS-PS1-1

Approximately 50 million years ago, the Himalayan mountain range began forming in Asia. Today, the ten highest peaks on earth are located in this range. The formation of the Himalayas can most likely be explained by the –

• rapid deposition of huge amounts of sediment

• collision of two crustal plates

• slow erosion of continental plate material

• separation of two crustal plates

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Which of the following demonstrates that a new substance can be formed from a chemical reaction?

• Milk souring

• Water evaporating

• Iron bending

• Helium-filled balloon floating

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which topographic map below matches this profile?

• 
• 
• 
• 

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NGSS.MS-ESS2-2

An atom of iron (Fe) has an atomic number of 26, and a mass number of 56. Therefore, this atom has -

• 26 protons

• 26 neutrons

• 56 protons

• 56 neutrons

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NGSS.MS-PS1-1

Which element is found on the Periodic Table of Elements in Group 2, Period 6?

• Oxygen (O)

• Carbon (C)

• Chromium (Cr)

• Barium (Ba)

When strips of zinc metal are dropped into a solution of hydrochloric acid, vigorous bubbles of gas and heat are produced. This reaction would therefore be considered -

• a physical change

• a chemical change

• an endothermic reaction

• none of these - this is not a reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5