OTES 5th Grade Science FCAT Review-2

On weather maps, the symbol of a red line with half circle on it is used to indicate

• a warm front

• a cold front

• a high pressure front

• a low pressure front

Oceans receive freshwater from precipitation and rivers. Yet ocean levels do not change very much from these actions. Why are ocean levels not greatly affected?

• Water is constantly seeping underground in the ocean.

• Water is constantly evaporating over the oceans surface.

• Water is constantly flowing back into rivers from the oceans.

• Water is constantly deposited back on land through ocean wave action.

An alligator is cold-blooded, is covered with scales, breathes with lungs, and lays eggs. The alligator belong to which class of animal?

• amphibian

• fish

• mammal

• reptile

Minerals have a regular crystal structure. The crystal shape of a mineral

• shows how the atoms are arranged.

• will always be the same if it is made from the same atoms.

• can usually only be seen under a microscope.

• can help account for how hard or brittle a mineral is.

The different phases of the moon are caused by

• the days of the month

• the tide level of the oceans

• the position of the Earth in its orbit around the sun

• the angle we see the sunlit side of the moon as it revolves around the Earth

During the phases of the Moon, the Moon appears to change shape. This change in appearance is due to the Moon

• physically changing size and shape.

• moving closer and then farther away from Earth.

• reflecting a different amount of light due to alignment with Earth and the Sun.

• turning on its own axis.

The hot melted rock that cools on the Earth's surface to eventually solidify into igneous rock is called

• lava

• magnetite

• magma

• sediments

Some changes in the earth are due to slow processes, such as erosion, and some changes are due to rapid processes. An example of an event that can cause a rapid change to landform is

• tree roots

• acid rain

• a heat wave

• a landslide

How do plants most commonly break large rocks into smaller pieces?

• Plant leaves insulate surrounding rocks from extreme temperatures.

• Plant roots grow into cracks in rocks.

• Seeds from plants fall onto rocks and release acidic compounds.

• Stems of plants surround and squeeze rocks.

When you ski down a hill you move faster and faster. Then at the bottom of the hill you eventually stop moving. What causes you to stop?

• No force is acting upon your skis on the level surface, so you stop moving.

• After you reach the bottom of the hill, you run out of energy, so you stop moving.

• Friction between your skis and the ground is an unbalanced force that changes your motion.

• Gravity affects you when you are skiing downhill, but there is not gravity on the level surface.