Science STAAR Category

Look at the picture abov. Beased on this picture, why do the North and South poles of the Earth have much longer periods of light and darkness than the rest of the planet?

• The poles are angled toward or away from the Sun because of Earth's revolution.

• The rotation of the Earth is fast enough to keep the poles lit all the time.

• The Moon is closest to the poles, so it keeps those areas colder and darker.

• The Sun can never reach the poles because of the way the Earth is tilted.

Tags

NGSS.MS-ESS1-1

A student wants to use a spinning basketball to model the day-and-night cycle on Earth. What should the student do in order to best model the cause of the day-and-night cycle?

• Spin the ball in different directions

• Tilt the ball while it is spinning

• Paint one half of the ball black and the other half white

• Shine a bright light on one side of the ball

Tags

NGSS.MS-ESS1-1

The diagram shows four positions in Earth’s orbit around the sun. The Northern Hemisphere experiences the beginning of spring when Earth is in —

• Position 1

• Position 2

• Position 3

• Position 4

Tags

NGSS.MS-ESS1-1

Students in a science class in Marfa, Texas, made a poster with a diagram to represent a seasonal change in the Northern Hemisphere. Which statement best describes conditions for Earth at Position 1 in the diagram?

• Earth’s orbit around the sun is not a perfect circle.

• North America has a larger landmass than South America.

• The moon has a greater pull on South America than on North America.

• Earth’s axis has a 23.5° tilt.

Tags

NGSS.MS-ESS1-1

What is the term for the movement of particles from an area of higher concentration to an area of lower concentration?

• Osmosis

• Diffusion

• Active transport

• Endocytosis

What is the process by which plants release water vapor into the air through their leaves?

• Condensation

• Transpiration

• Evaporation

• Precipitation

What is the primary function of the chloroplasts in plant cells?

• To break down sugar molecules to release energy

• To store water and nutrients

• To capture light energy and convert it into chemical energy

• To control the entry and exit of substances in and out of the cell

Tags

NGSS.MS-LS1-6

What is the term for the amount of matter in an object?

• Weight

• Density

• Mass

• Volume

Which of the following is NOT a renewable resource?

• Solar energy

• Wind energy

• Coal

• Hydroelectric power

Which of the following is a chemical change?

• Dissolving salt in water

• Boiling water

• Burning wood

• Melting ice

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5