SPS8A

A _____________ tide occurs when the moon, sun, and Earth are aligned.  This is a period of the highest high tides and lowest low tides.

• neap

• spring

• slack water

• ebb

Tags

NGSS.MS-ESS1-1

What color is the dimmest Star?

• Yellow

• Blue

• Red

• White

The Hubble Space Telescope is a well-known satellite. It was launched into space in 1990. It is in orbit 380 miles above Earth. Hubble takes photos of our solar system and faraway galaxies. A galaxy is a huge group of stars, dust, and gas. Over the years, Hubble has taught scientists a lot about space. What is the appropriate unit for measuring the distance to other galaxies?

• Miles

• Kilometers

• Light Year

• Astronomical Unit

The light from many stars can be seen from Earth. But there is a time delay between the time the light is emitted from the star and when we see it here on Earth. Which of the following statements best explains why there is a delay?

• Stars twinkle, so they give off light at regular intervals.

• The stars’ light is not bright enough to reach Earth immediately.

• Stars are light-years away from Earth, so light takes time to reach our planet.

• Earth’s atmosphere is too thick for light to reach the surface as soon as it is emitted.

Earth, Jupiter, Mars, the Moon, and the Sun are objects found within our Solar System. Which of the following lists them in the order of their gravitational force, from least to greatest?

• Earth, Jupiter, Mars, Moon, Sun

• Jupiter, Sun, Moon, Earth, Mars

• Moon, Mars, Earth, Jupiter, Sun

• Sun, Jupiter, Mars, Moon, Earth

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Earth’s orbit around the Sun is not circular. Therefore, there are times in the year when the Earth is closer to the sun. Which of the following is true when Earth is at its position closest to the Sun?

• Earth’s temperature is the lowest

• The gravitational attraction between the Earth and the Sun is at its maximum.

• The gravitational attraction between the Earth and the Sun is at its minimum.

• Earth stops moving.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which characteristics describe liquids?

• definite volume

• very little particle motion

• not easy to compress

• fluid motion

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which characteristics describe gases?

• easily compressed

• constant, fast particle motion

• no definite shape

• very little particle motion

The fourth state of matter, plasm, exists when what happens?

• The atoms in a gas become ionized (electrons are removed)

• The atoms in a gas undergo nuclear fission.

• When electromagnetic forces causes the atoms to stop colliding with one another.

• The atoms in a gas lose all intermolecular attraction for one another.

Tags

NGSS.MS-PS1-4

Which characteristics describe solids?

• constant, fast particle motion

• definite shape

• no definite volume

• not easy to compress, it at all