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Unit 10
YÖKDİL Natural Sciences: Vocabulary, Reading & Practice
physics, chemistry, biology, engineering and environment texts
Key Academic Vocabulary
| Word | Meaning | Example |
|---|---|---|
| hypothesis | an idea that is tested by experiments | The results supported the hypothesis. |
| variable | a factor that can change in an experiment | Temperature was the only variable. |
| yield | produce a result or an amount | The experiment yielded surprising results. |
| emit | send out gas, heat, light or sound | Cars emit carbon dioxide. |
| compound | a substance made of two or more elements | Water is a compound of hydrogen and oxygen. |
| catalyst | a substance that speeds up a chemical reaction | Enzymes act as biological catalysts. |
| dense | having a lot of mass in a small volume | Lead is denser than aluminium. |
| friction | the force that resists movement between surfaces | Friction slows the wheel down. |
| erosion | the gradual wearing away of rock or soil | Wind causes erosion in dry regions. |
| sediment | material that settles at the bottom of water | Rivers carry sediment to the sea. |
| biodiversity | the variety of living things in an area | Rainforests have high biodiversity. |
| organism | a single living thing | Bacteria are single-celled organisms. |
| mutation | a change in the genetic material of a cell | Some mutations cause disease. |
| synthesise | produce a substance by a chemical process | Plants synthesise sugar from sunlight. |
| conductivity | the ability to transmit heat or electricity | Copper has high electrical conductivity. |
| renewable | able to be naturally replaced | Solar power is a renewable energy source. |
| negligible | so small that it is not important | The difference was negligible. |
| accumulate | gradually increase in amount | Plastic accumulates in the oceans. |
| dissipate | disappear or spread out gradually | The heat dissipates quickly. |
| replicate | repeat an experiment and get the same result | Other labs failed to replicate the results. |