Grade 6 Pre/Post 2

1.

1 point

Which of the following substances will fill the volume of its container?

tap water

water vapor

a solution of salt and water

ice

I don't know

2.

1 point

Heat can be transferred

by conduction.

by convection.

by radiation.

all of the above

I don't know

3.

1 point

In what scale does water freeze at 0 degrees and boil at 100 degrees?

the Kelvin scale

the Celsius scale

the Absolute scale

the Fahrenheit scale

I don't know

4.

1 point

Weather can be studied in terms of all of the following except

wind speed and direction.

air pressure, temperature and humidity.

the tides.

the type and amount of precipitation.

I don't know

5.

1 point

Our Solar System contains

many stars.

one star, eight planets orbiting that star, their moons, and many asteroids, comets, and meteors.

nine planets orbiting a star.

many galaxies.

I don't know

6.

1 point

The Sun is

the star closest to Earth.

a medium-sized star.

part of the Milky Way Galaxy.

all of the above

I don't know

7.

1 point

The major source of energy for the operation of the water cycle on Earth is

Earth's rotation and revolution about the Sun.

radiation from the Sun.

heat from the Earth's core.

energy from the Sun's gravitational field.

I don't know

8.

1 point

Which is not part of Earth's water cycle?

soil erosion

radiation from the Sun

rain

cloud formation

I don't know

9.

1 point

If a new moon occurred on June 14, when will the next new moon occur?

June 28

June 30

July 23

July 13

I don't know

10.

1 point

What causes seasonal changes?

the rotation of the Earth on its axis

the tilt of the Earth on its axis

the changing intensity of the Sun's radiation

the polar ice caps

I don't know

11.

1 point

The Moon glows because

it reflects light from the Sun.

it reflects light from the Earth.

it generates its own light.

there are volcanic eruptions on its surface.

I don't know

12.

1 point

How long does it take Earth to make one full rotation on its axis?

365 days

30 days

24 hours

12 hours

I don't know

13.

1 point

The opposing seasons in the northern and southern hemispheres are caused by

changing temperatures of the Sun during certain times of the year.

the tilting of the Earth tilting one hemisphere more toward the Sun at different times of the year.

the Moon shading the hemispheres part of the year.

more rain in each hemisphere at different times of the year.

I don't know

14.

1 point

Earth's atmosphere consists mostly of

carbon dioxide

oxygen

nitrogen

hydrogen

I don't know

15.

1 point

Which of the following refers to water in the gaseous state?

rain

fog

steam

humidity

I don't know

16.

1 point

Over 70% of the Earth's surface is covered by

soil.

salt water.

fresh water.

ice.

I don't know

17.

1 point

If a new moon appears on June 2nd, on what date would the moon be waxing?

June 10th

June 17th

June 30th

none of the above

I don't know

18.

1 point

Most of Earth's weather occurs in which part of the atmosphere?

the troposphere.

the stratosphere.

the thermosphere.

the lithosphere.

I don't know

19.

1 point

The area where two air masses meet is called

a rawinsonde.

a front.

smog.

a low pressure area.

I don't know

20.

1 point

Distance from the equator is measured by

longitude.

time zones.

latitude.

distance from the Prime Meridian.

I don't know

21.

1 point

The name of a front is determined by its

speed.

temperature.

amount of cloud cover.

amount of precipitation.

I don't know

22.

1 point

Which is not an example of condensation?

moisture forming on the side of a glass holding a cold liquid.

a person's glasses steaming up when they enter a warm room

clouds forming in the sky

frost forming on car windows overnight

I don't know

23.

1 point

Which part of the water cycle involves water changing into vapor?

precipitation

run-off

evaporation

condensation

I don't know

24.

1 point

Morning dew on blades of grass is an example of

precipitaiton

condensation.

evaporation.

run-off

the tilt of the Earth on its axis

25.

1 point

A puddle of water that dries up over the course of a day is an example of

precipitation.

condensation.

evaporation.

runoff

I don't know

26.

1 point

A well-designed experiment tests the affects of how many variables?

one

two

ten or more

as many as possible

27.

1 point

What is a hypothesis?

a question

a possible explanation or answer to a question

an experiment

a conclusion

28.

1 point

Which of the following is not an important part of the water cycle?

evaporation

condensation

seed dispersal

cloud formation

29.

1 point

As ice cream melts, its molecules...

absorb heat energy and move farther apart.

absorb heat energy and move closer together.

release heat energy and move farther apart.

release heat energy and move closer together.

30.

1 point

If an inflated balloon is left in the sun, its...

mass will increase.

mass will decrease.

volume will increase.

volume will decrease.

31.

1 point

Which of the following is not a state or phase of matter?

solid.

liquid

plasma

mixture

32.

1 point

Density is defined as mass per unit volume, mass/volume. Which units could be used to express density?

pounds/square inch

grams/liter

both A&B

neither A nor B

33.

1 point

The amount of matter in an object is called its

volume.

weight.

density.

mass.

34.

1 point

In a liquid phase, the molecules of any substance

have more energy than those of the same substance in the solid phase.

have more energy than those of the same substance in the gas phase.

need to gain energy to change to a solid.

need to lose energy to become a gas.