States of Matter
Changes in States of Matter
Inner Planets
Outer Planets
Celesital Objects
100
A solid has ___ shape and ____ volume.
A solid has a definite shape and definite volume.
100

pg. 63 Q. 9

When a liquid turns into a solid it is known as ___. The reverse process is ____.
When a liquid turns into a solid it is known as freezing. The reverse process is melting.
100
pg. 117 Q. 13

The inner planets are also called...

terrestrial (rocky) planets.
100
Which outer planet is largest? What feature on this planet can fit 2 Earth's inside?
Jupiter. Its Great Red Spot can fit 2 Earth's inside.
100
pg 37. Q. 10

All space objects are kept in orbit by ___ and ___.

All space objects are kept in orbit by gravity and inertia.
200
Define a gas.
Gases do not have a definite shape nor a definite volume.
200
pg. 63 Q. 9

The process of a liquid becoming a gas is vaporization. There are 2 types of vaporization: evaporation and boiling. How are they different?

Evaporation occurs on the surface, while boiling occurs throughout the liquid.
200
Which planet has the shortest revolution? Why?
Mercury because it is the closest planet to the sun.
200
What do all outer planets have in common?
They are large, made of gas, have rings, many moons, are far from the sun (past the asteroid belt), have long revolutions
200
pg. 118 Q. 21

A ___ is a meteoroid that reaches Earth's surface.

A meteorite is a meteoroid that reaches Earth's surface.
300

How are liquids same as gases but different from solids?

Both liquids and gases take the shape of their containers, but solids do not.
300
pg. 65 Q. 6

The diagram in your review packet shows molecules in water before and after a change in state. What change in state occurred? How do you know?

Freezing occurred. We know this because the molcules became closely packed together.
300
Why is Mercury the second hottest planet even though it is closest to the sun?
Mercury has no atmosphere. Without atmosphere heat can not be trapped on the surface of the planet.
300

pg. 118 Q. 17

All the gas giants are surrounded by...

a system of rings.

300
Name the 3 parts of a comet.
Nucleus, coma, tail
400

pg. 63 Q. 3

Why do liquids and gases take the shape of their containers while solids do not?

The particles in liquids and gases are free to move past each other, while particles in solids vibrate in place.

400
pg. 63 Q. 8

When you see fog or clouds, you are seeing water in the ___ state.

When you see fog or clouds, you are seeing water in the liquid state.
400
What characteristics do all inner planets have in common?
rocky (terrestrial), small in size, close the sun, few or no moons, short revolutions, no rings
400
Neptune is ____ than Uranus but has ____ mass.
Neptune is smaller that Uranus but has greater mass.
400
What determines whether a space object is considered a dwarf planet?
Small, spherical, orbits the sun, some debris (space junk) is still in its orbit
500
pg. 63 Q. 3

Compare the movements and positions of people dancing with the motions of water molecules in liquid water and water vapor.

Water molecules in liquid water are close together and slide past each other like good dancers. While in water vapor molecules move very fast, are far apart, occassionally bump into each other and things, like kids on a sugar high.
500
pg. 63 Q. 11

When you open a solid room air freshener, the solid slowly loses mass and volume. How do you think this happens? (Through which phase change process?)

Sublimation. The solid turns directly into a gas.
500
pg. 117 Q. 14

Explain why Venus has the hottest surface of any planet.

Venus's thick atmosphere causes the greenhouse effect, trapping of heat.
500
pg. 118 Q. 18

What planet is shown in your review packet? What is unusual about it? What do scientists think caused that unusual feature?

Uranus. It rotates on its side (at a 90 degree angle). Scientists think Uranus what hit by a large object early in its development.
500
pg. 118 Q. 22

Compare and contrast asteroids, meteoroids, and comets.

Asteroids are rocky, irregular bodies. Comets are icy bodies that develop tails as they orbit closer to the sun. Meteoroids are small rocky bodies.
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