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WorksheetsReview Science Grade 2 Unit B Chapter 5
Total questions: 20
Worksheet time: 11mins
A___________is a useful material that comes from Earth.
natural resource
boulder
and
rock
What is a very big rock called?
sand
soils
boulder
oil
What is sand made of?
tiny pieces of soild
tiny pieces of glass
tiny pieces of minerals
tiny pieces of rock
__________ are nonliving materials that come from Earth.
Sands
Minerals
Rocks
Soils
When does erosion happen?
when rocks or soil are moved by water or wind.
when rocks or sand are moved by water or wind.
when minerals moved by water or wind.
__________is the breaking apart and changing of rocks.
Erosion
Weather
Weathering
Natural resourse
When is pollution ?
Adding harmful things to the land, air,or water.
Adding useful things to the land, air,or water.
Adding useless things to the land, air,or water.
Adding harmless things to the land, air,or water.
What is soil?
A mixture of clay, sand, and humus
A mixture of sand and rocks
A mixture of minerals and sand.
Which sentence is not true about natural resources?
They are useful
They don't come from the Earth
Some natural resources can be replaced after they are used
Sunlight, water, and air are natural resources that can never be used up
A__________ is a safe place for plants and animals to live.
House
Shelter
Refuge
Factory
How does recycling reduce pollution?
by changing something so it can be used again.
by reducing amounts of things used are other ways
by changing something so it can' be used again.
by useing something again.
What are some ways people can help protect plants and animals? ( more than 1 answer)
take animals to a refuge
plant new trees to replace the trees that have been cut down
cut down trees without replanting.
build homes and factories on land
Which can help prevent erosion?
Plants
Water
Wind
Animals
How do people use plants? ( you can choose more than 1)
Build homes
Make computer
Make clothes
Make machine
Make food
Which sentences is not true about soil?
Soil is a natural resource.
Soil covers most of the land
Soil is a mixture of clay, sand, and humus.
Soils are all the same.
Which of the following natural resources can be replaced?
sunlight, trees, water, oil, coal
(you can choose more than 1)
sunlight
trees
water
oil
coal
Which of the following natural resources can never be used up?
sunlight, trees, water, oil, coal
(you can choose more than 1)
sunlight
trees
water
oil
coal
Which of the following natural resources can not be replaced?
sunlight, trees, water, oil, coal
(you can choose more than 1)
sunlight
trees
water
oil
coal
What does "3R" include? ( you can choose more than 1)
Recycle
Reduce
Reuse
Redo
Remake
What natural resource is the made of?
soil
wood
cotton
wheat
