A free, playable vocabulary list. · 20 words · CEFR B1
Every word below is wired into all five arcade games — open one and your 20-word set is loaded, ready to match, recall and review.
| # | Word | POS | Level | Definition & example |
|---|---|---|---|---|
| 1 | experiment | noun | B1 | a test you do to learn or prove something The class did an experiment with water. |
| 2 | laboratory | noun | B1 | a special room for scientific tests The samples are safe in the laboratory. |
| 3 | theory | noun | B1 | an idea that explains how something works Scientists tested the new theory. |
| 4 | discovery | noun | B1 | the act of finding something new The discovery changed how we treat the disease. |
| 5 | scientist | noun | B1 | a person who studies science The scientist studies the stars. |
| 6 | research | noun | B1 | careful study to find out facts She does research on ocean life. |
| 7 | method | noun | B1 | a way of doing something This method gives the clearest results. |
| 8 | measure | verb | B1 | to find the size or amount of something Measure the water before you add it. |
| 9 | chemical | noun | B1 | a substance made by or used in chemistry The lab stores dangerous chemicals safely. |
| 10 | force | noun | B1 | a push or pull on something Gravity is a force that pulls things down. |
| 11 | gravity | noun | B1 | the force that pulls objects towards the earth Gravity keeps our feet on the ground. |
| 12 | planet | noun | B1 | a large round object that moves around a star Mars is a cold, dry planet. |
| 13 | microscope | noun | B1 | a tool that makes tiny things look much bigger We saw cells under the microscope. |
| 14 | sample | noun | B1 | a small amount taken for testing They took a water sample from the river. |
| 15 | observe | verb | B1 | to watch something carefully The team observed the birds for a month. |
| 16 | result | noun | B1 | what happens at the end of a test or study The results of the test were positive. |
| 17 | invent | verb | B1 | to make something new for the first time He invented a machine that cleans the sea. |
| 18 | machine | noun | B1 | a device with moving parts that does work The washing machine is broken again. |
| 19 | conclusion | noun | B1 | the final idea you reach after study Her conclusion was that the plan works. |
| 20 | evidence | noun | B1 | facts that show that something is true The photos are evidence of the damage. |
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