Photosynthesis, Cycling of Matter Through an Ecosystem

Transcription

1 Science

2 1. Cameron grew a snow pea plant from a seed at school. He brought the plant home in the hopes of getting some pea pods to eat. He forgot to water it for a whole week and the plant died. Based on your knowledge of plants, describe Cameron s mistake and why his plant died. 2. Dominic bought an oregano plant for Mother's Day. He didn't want his mother to see it before giving it to her as a gift, so he hid the plant in his closet. Based on your knowledge of plants, explain why putting the plant in the closet may be a poor decision. 3. In order for plants to go through the process of photosynthesis, they must have energy. What type of energy must they have? 1. sound energy 3. heat energy 2. light energy 4. chemical energy Photosynthesis, Cycling of Matter Through an Ecosystem

3 4. Air is necessary for all living organisms to survive. Which gas in air is necessary for photosynthesis, a process in which plants make their own food? 1. nitrogen 3. carbon dioxide 2. oxygen 4. water vapor 5. Plants, like animals, have basic needs in order to survive. Which of the following gases is needed for plants to survive? 1. helium 3. oxygen 2. carbon dioxide 4. neon Photosynthesis, Cycling of Matter Through an Ecosystem

4 6. Pablo wants to see what will happen to his new strawberry plant if he puts it into a closet for three days. Explain what effect this action would have on the strawberry plant. 7. Based on the diagram, what are the three ingredients needed for photosynthesis to take place? 1. light energy, water, carbon dioxide 2. light energy, water, oxygen 3. water, carbon dioxide, oxygen 4. light energy, carbon dioxide, oxygen Photosynthesis, Cycling of Matter Through an Ecosystem

5 8. What are the ingredients for photosynthesis? 1. water, soil, sunlight 2. water, carbon dioxide, sunlight 3. water, oxygen, sunlight 4. soil, carbon dioxide, sunlight 9. Which organisms in the fish tank produce oxygen? 1. the plants 3. the water 2.the rocks 4. the fish 10. What factor of the environment limits the numbers of producers at great depths in the ocean? 1. type of seafloor 2. amount of light reaching the seafloor 3. availability of minerals on the seafloor 4. absence of living factors at the seafloor 11. In an ecosystem, what happens to elements such as carbon, oxygen, and nitrogen? 1. They move into and out of living systems. 2. They are never found in living systems. 3. They move out of living systems and never return. 4. They move into living systems and remain there. 12. Which is an example of how a non-living factor affects a living factor in the environment? 1. The lamprey eel lives on trout as a parasite. 2. The temperature of water affects its oxygen level. 3. The low light in the forest affects the growth of pine trees. 4. A gypsy moth caterpillar eats the leaves of an apple tree. 13. For a natural ecosystem to be able to maintain itself, many chemical elements must be: 1. converted to energy 2. changed into fossil fuels such as oil and coal 3. permanently removed from the environment 4. cycled between organisms and the environment Photosynthesis, Cycling of Matter Through an Ecosystem

6 14. What do plants produce that humans need? 1. carbon dioxide 3. oxygen 2. sunshine 4. helium Photosynthesis, Cycling of Matter Through an Ecosystem

7 1. This river valley was most likely formed by. 1. erosion 3. runoff 2. earthquakes 4. evaporation 2. The arch in this rock was most likely formed by. 1. erosion 3. runoff 2. evaporation 4. earthquakes 3. The riverbed shown in the photograph was most likely formed by. 1. earthquakes 3. runoff 2. erosion 4. evaporation Landscape Formations, Erosion & Deposition, Earthquakes

8 4. Which natural disaster most likely caused the damage shown in the photograph? 1. a flood 3. erosion 2. an earthquake 4. a hurricane 5. How are fault-block mountains formed? 1. Magma reaches the surface of the Earth. 2. Two plates bump into each other and the edges crumple or fold. 3. Two plates move away from each other. 4. A block of rock moves up along a fault. 6. How did the rocks and dirt end up at the bottom of this rocky hill? 1. erosion 2. weathering 3. deposition Landscape Formations, Erosion & Deposition, Earthquakes

9 7. What will happen to the pieces of rock that break away from the larger boulders in this photograph? 1. Pieces of rock will not break away. 2. They will be deposited in the pool of water below. 3. They will dissolve into the water. 4. They will become part of the rocks they fall onto. 8. In what type of rock are fossils most often found? 1. igneous rocks 2. metamorphic rocks 3. sedimentary rocks 9. What does this photograph show? 1. the deposition of rocks and sand 2. the erosion of rocks and sand 3. the weathering of rocks 4. the disintegration of rocks 10. What type of rocks are formed from existing rocks that have been squeezed and heated up deep inside Earth's crust? 1. igneous rocks 2. metamorphic rocks 3. sedimentary rocks Landscape Formations, Erosion & Deposition, Earthquakes

10 11. This is a photograph of sedimentary rock. Explain how sedimentary rocks are formed. Landscape Formations, Erosion & Deposition, Earthquakes