S3U4L1 - Ecosystems and Interactions Part 2
Presentation
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Science
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3rd Grade
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Medium
Standards-aligned
David Victor Banares
Used 4+ times
FREE Resource
22 Slides • 4 Questions
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S3U4L1 - Ecosystems and Interactions
Part 2
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Multiple Select
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No, camels do not store water in their humps. A camel’s hump is made of fat. .
When food is scarce, a camel’s body can use the fat as a source of energy so that the camel can do without food for weeks.
Camels are just very good at surviving without water for long periods
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Multiple Select
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The owls and the mice are two different populations within the same community.
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Multiple Select
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The pond is part of the deer’s habitat.
A community is made of populations of different organisms all living in the same area.
A habitat is an area where an organism lives.
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Sea otters wrap themselves in kelp when they fall asleep floating on the ocean surface. Why do you think they do this?
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Kelp is rooted on the ocean floor.
Sea otters wrap themselves in kelp so that they don’t float too far out into the ocean.
Otherwise, they might wake up to find themselves lost in deep waters far from home!
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Multiple Choice
Can you think of another freshwater habitat that, like a pond, is completely surrounded by land?
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A lake is completely surrounded by land. Most lakes are freshwater. Lakes tend to be larger than ponds and have areas of deeper water.
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Why do you think that the part of a river close to the ocean is wider than the part of a river close to the mountains?
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By the time a river nears the ocean, many streams and other rivers have flowed into it on their way to the ocean.
Each stream adds more water to the river and increases erosion, so the river is wider.
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Why do you think that wetlands can be found at the edges of some ponds, rivers, or the ocean?
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Wetlands are drier than ponds, rivers, and the ocean but wetter than dry land.
Wetlands are an area of transition between a body of water and the land that borders it.
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What are some reasons wetlands are important to Earth?
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Wetlands help clean water by filtering dirt and pollution out of it.
They also help control flooding. When there is too much water in an area, wetlands act like a sponge and absorb the extra water.
The roots of wetland plants prevent erosion by trapping soil so that it is not carried away by flowing water.
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S3U4L1 - Ecosystems and Interactions
Part 2
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