science test review feb2020
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| 🇬🇧 | 🇬🇧 |
| What is an ecosystem? | It is a community of living/non living organisms interacting with each other |
| What is a biome? | Its a large geographical region that has similar ecosystems |
| +what are five examples of biomes | Desert, grassland, tundra, tropical rainforest, freshwater |
| What is abiotic? Give one example | It is the nonliving factors that influence a living thing E.G.water |
| What is biotic? give one example | It is the living organisms in the environment e.g. insects |
| What is photosynthesis | It is the transfer of light (sun) energy to chemical energy. The plant uses this energy as fuel |
| What five things provide energy to the plant | -sun -water -chlorophyll -nutrients in soil -carbon dioxide in air |
| What is a four ways in which plants use food? | -Food nutrients move through the plant by sap -Food energy is stored in roots -Food is used for plant growth -Food is used for energy |
| What is a food chain | Its the order of organisms in which food is transferred |
| Draw a food chain with five trophic levels | Hawk - snake - frog - grasshopper - wheat |
| What is a food web | Its all the food chains within an eco system interacting with each other |
| What is a food pyramid? | It represents the loss of energy throughout the trophic levels |
| Draw a food pyramid with four trophic levels | Human -birds -grasshopper -wheat |
| What does photo mean and what does synthesis mean | Photo-light synthesis- putting together |
| What gives a plant its green colour | Chlorophyll |
| What is ecological succession and use a forest fire to describe that process | It is when a change happens within an ecosystem and that eco system slowly grows back over time -a forest fire occurs-the trees,shrubs, grass and insects are burned -animals disappear -slowly,grasses shrubs,insects ,small animals came back,until it climaxes and returns to its former self |
| These are called detrivores | Scavenger |
| These are mainly animals | Scavenger |