Fourth Grade Science Review Question Preview (ID: 36985)
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What makes up an ecosystem?
a) The biotic and abiotic feature which are living and nonliving things.
b) The roads and highways in a state.
c) The rain, hail, sleet, and snow that falls.
d) The total number of people that live in a city.
What does soil cover?
a) Soil covers some caves.
b) Soil covers most of the land on Earth.
c) Soil may be left behind by glaciers.
d) Soil gets eroded.
Both plants and animals depend on what?
a) Some rock are metamorphic, igneous, and sedimentary.
b) Volcanoes can cause new rocks to form.
c) Plants and animals receive energy from the sun.
d) Scientists use microscopes to look at plants.
Polar ecosystems do not have what?
a) Polar ecosystems do not have polar bears.
b) Polar ecosystems do not have seals.
c) Polar ecosystems do not have snow and ice.
d) Polar ecosystems do not have dirt and soil.
What do desert ecosystems have very little of?
a) Desert ecosystems receive very little precipitation such as rain.
b) Desert ecosystems have very little sand.
c) Desert ecosystems have very little sunshine.
d) Desert ecosystems have very little heat energy.
What does a living thing need to survive?
a) A living thing needs only cold.
b) A living thing will survive best where all of its needs are best met.
c) A living thing needs only darkness.
d) A living thing needs computers.
What does shade provide in an ecosystem?
a) Shade provides plant seeds.
b) Shade provides bees to pollinate flowers.
c) Shade provides protection for plants and animals.
d) Shade provides glaciers.
Which is an example of an abiotic factor in an environment?
a) The polar bear is an abiotic factor in an environment.
b) The cactus is an abiotic factor in an environment.
c) The giraffe is an abiotic factor in an environment.
d) Water is an abiotic factor in an environment.
Where are you most likely to find an igneous rock?
a) Igneous rocks often form near volcanoes.
b) Igneous rocks will always be by sedimentary rocks.
c) Igneous rocks will always be in a polar ecosystem.
d) Igneous rocks can only be in the desert.
Which is a huge block of ice mixed with rocks and sand that molds the land?
a) A glacier is a delta at the end of a river.
b) A glacier is a huge block of ice mixed with rocks and sand that can change the shape of land.
c) A glacier is inside a volcano.
d) A glacier cannot move at all.
What is the dropping off of sediments called?
a) Erosion is the movement of rocks and soil.
b) Weathering is the wearing away of rocks into smaller bits.
c) The dropping off of sediments in a new location is called deposition.
d) Sediment cannot be moved.
What weather conditions can change the surface of Earth?
a) There are a lot of rocks on Earth.
b) Sand can be found by oceans on beaches.
c) Deserts are very warm.
d) Strong wind and heavy rainfall can change Earth’s surface.
Which parts of Earth did glaciers cover during the ice ages?
a) Glaciers covered as much as 1/3 of Earth, including areas that are much warmer today.
b) Just 10% of Earth's surface.
c) One tenth of Earth was wet.
d) Just one or two high mountains.
Which can result from earthquakes, floods, and volcanic eruptions?
a) Not very many loud noises.
b) Landslides can be caused by earthquakes, floods, and volcanic eruptions.
c) The sun may change the direction it moves across the sky.
d) Longer days and nights for one day.
How do trees prevent wind erosion in forests?
a) The trees look nice.
b) Some trees have fruit like apples.
c) Plant roots of trees hold soil in place and prevent it from being picked up and moved.
d) Trees don't grow in forests.
Which is most like a glacier changing Earth’s land?
a) A glacier is very hot.
b) A glacier can only be on an island.
c) A glacier is like a small rock.
d) A glacier is like a bulldozer pushing and piling anything in its path.
Which tool could be used to measure temperature?
a) A thermometer is a tool that can be used to measure temperature.
b) A barometer measures air pressure.
c) A scale measures weight.
d) A fire produces a lot of heat energy.
How can you make an electromagnet stronger?
a) Just take it outside.
b) If you add more wire loops to the coil, it will be stronger.
c) Keep it in a really cold room.
d) Ask a friend to hold the electromagnet.
What happens if you add heat to a substance?
a) Its particles will freeze in place.
b) Its particles will not get excited.
c) Its particles will move faster.
d) Its particles will only get smaller.
What material is an excellent conductor of heat?
a) The conductor played some great music.
b) Try cardboard as a conductor.
c) Rubber bands might make excellent conductors of electricity.
d) Copper, a kind of metal, is an excellent conductor of heat energy.
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