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4th Grade Science #1
Ecosystems & Plants
| Question | Answer |
|---|---|
| Living things need what to survive | Food, Air, Water, Sunlight and Space |
| Plants make their own food from what 3 things? | Sunlight, water and carbon dioxide |
| Living things need what to produce energy from their food? | Oxygen |
| Carrying Capacity | Highest # of any population that an ecosystem can support |
| How can an ecosystem become unbalanced? | Fires, drought and human causes such as over fishing. |
| What carries nutrients from the soil to the plant? | Roots |
| How do plants get the air they need? | Tiny openings called Stomata |
| Water + carbon dioxide = | Sugar/Glucose |
| What is Photosynthesis? | Process of changing carbon dioxide & water into sugar. |
| What happens to energy during Photosynthesis? | It is transformed from light energy to chemical energy. |
| As plants use glucose, what do they release into the the air? | Oxygen + Water |
| Plants produce their own food so they are called: | Producers |
| Animals do NO produce their food so they are called: | Consumers |
| Animals that eat PLANTS: | Herbivores |
| Animals that eat other ANIMALS: | Carnivores |
| Animals that eat BOTH plants and animals: | Omnivores |
| Food chain shows what: | How energy is passed from one organism to another in an ecosystem. |