3rd Grade Science - Earth System Questions Part 2

Soil is important to a forest because the soil —
(2008 test question)
1. stores sunlight in the leaves
2. attracts insects that eat leaves
3. provides nutrients to the trees
4. warms the air around the trees
Why is it important to protect soil?
(2010 test question)
1. It covers the bedrock layer in the earth.
2. It has nutrients used by plants to grow.
3. It holds many harmful pollutants.
4. It dries quickly in sunlight.
Which job is done in Virginia only during the fall season?
(2009 test question)
1. Picking apples
2. Feeding animals
3. Selling clothes
4. Building houses
Which of these is the BEST sign that the fall season has begun?
(2009 test question)
1. Plants forming new buds
2. Sun shining on flowers
3. Grass being wet in the morning
4. Leaves changing color on trees
Which of the following BEST shows the order of events in the lifecycle of a bean plant?
(2009 test question)
1. 2, 3, 4, 1
2. 3, 4, 2, 1
3. 1, 2, 4, 3
4. 1, 4, 3, 2
Which of these will take the LONGEST time to observe?
(2010 test question)
1. One moon-phase cycle
2. One ocean-tide cycle
3. An acorn growing into an adult tree
4. A caterpillar becoming a butterfly
Which of these lists has only products that come from plants?
(2009 test question)
1. Paper, spices, and fibers
2. Wool, lumber, and butter
3. Medicines, leather, and milk
4. Cotton, rubber, and eggs
Which of these is made from a plant?
(2010 test question)
Which would help conserve water?
(2009 test question)
1. Turn off water while brushing teeth
2. Wash the car every day
3. Water the lawn every day
4. Run the dishwasher after each meal
Which of these does the MOST harm to the air?
(2007 test question)
1. Chopping down trees with an ax in the backyard
2. Collecting fall leaves
3. Cutting grass with a gas-powered lawnmower
4. Picking colorful wildflowers along the highway
A wetland habitat can continue to support the birds and fish that live there if people —
(2007 test question)
1. drain the water away
2. flood the highest parts of the land
3. leave the land alone
4. use the land for planting crops
If a wooded area is cleared and corn is planted, what will MOST likely happen?
(2007 test question)
1. Animal habitats will be destroyed.
2. The air will become polluted.
3. Weather patterns will change.
4. Underground streams will get polluted.
Martina only washes her sweater after she has worn it several times. Martina is helping the environment by —
(2008 test question)
1. wasting water
2. reusing water
3. recycling water
4. conserving water
An old T-shirt can be ripped into smaller pieces and used as rags. An empty milk jug can be used to water houseplants. Both of these are examples of how —
(2009 test question)
1. saving water conserves future resources
2. using old materials can waste money
3. plants need water to be healthy
4. everyday materials can be reused
Which will have a bad effect on the air people breathe?
(2008 test question)
Which of these is an example of something being recycled?
(2008 test question)
1. Taking glass bottles to a place that makes them into new bottles
2. Using the same foil to cover food several times
3. Wrapping glasses with newspaper to put them in a moving box
4. Carrying lunch to school every day in the same plastic bag
Which of these activities makes the MOST air pollution?
(2009 test question)
1. Storing trash bags
2. Reusing trash bags
3. Burning trash bags
4. Recycling trash bags
People can help keep a forest a good place for birds to live by —
(2010 test question)
1. dumping garbage in a small part of the forest
2. building a road through the middle of the forest
3. burning dead trees to make smoke in the air
4. preventing too many trees from being cut down
Which of these is the BEST way to save animals and trees?
(2010 test question)
1. Ride bikes more
2. Make more farmland
3. Take care of forests
4. Move to the city