Science 8 STAAR Practice 8

Which description of the energy conversions in this process is correct?

• The chemical energy in the fuel-air mixture is converted to thermal energy, which is then converted to mechanical energy.

• The mechanical energy in the fuel-air mixture is converted to electrical energy, which is then converted to thermal energy.

• The electrical energy in the fuel-air mixture is converted to mechanical energy, which is then converted to thermal energy.

• The thermal energy in the fuel-air mixture is converted to electrical energy, which is then converted to mechanical energy.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS3-4

Which table explains the functions of the two body systems that the students investigated?

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Tags

NGSS.MS-LS1-3

Which statement correctly explains which position of Earth represents summer in the United States?

• Position 1, because the Western Hemisphere is facing the sun

• Position 2, because the Northern Hemisphere tilts toward the sun

• Position 3, because Earth is at its closest point to the sun in its orbit

• Position 4, because Earth is traveling at its fastest rate in its orbit

Tags

NGSS.MS-ESS1-1

Students observe an unknown species during a field study. They observe that the organism is multicellular, is autotrophic, and can reproduce both sexually and asexually.

Which kingdom does this organism most likely belong to?

• Archaea

• Animalia

• Bacteria

• Plantae

A car initially traveling at 8.0 meters per second doubles its speed while traveling in a northeast direction. Students used a table to record the initial and final conditions for speed and velocity. Which table is correct?

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Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which element has chemical properties that are most similar to the chemical properties of sulfur, S?

• Silicon, Si

• Chlorine, Cl

• Selenium, Se

• Phosphorus, P

Which diagram shows the correct relative positions of the sun, the moon, and Earth when the moon was in the observed phase?

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Tags

NGSS.MS-ESS1-1

Which table describes the object’s motion?

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Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Researchers predict that in the future, the land area of point X will be reduced by erosion.

Which event will cause the most weathering and erosion to the land area at point X?

• Increasing salinity of seawater near the land

• Intense rays from the sun striking the land

• Solids floating in seawater depositing on the land

• Strong storm winds blowing across the land

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Humans depend upon food that comes from the ocean. Some human activities negatively impact these food supplies.

• Human visitors to coral reef systems break corals growing on rocks.

• Humans catch marine fish at a faster rate than the fish are able to reproduce.

• Humans raise fish in a hatchery for commercial sale.

• Humans construct artificial reefs to attract tourists.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-5