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View lesson content: Click to expand | Course Descprition : | |
| In science, a theory is a stronger assertion. It's a claim about the relationship between various facts; a way of providing a concise explanation for what's been observed. However, science is always a work in progress, and even theories change. Let's learn more about some revolutionary scientific theories, in this English topic. | |
| Language : | English |
| Categories : | Duo or Group classes, Level B2 |
| CEF : | A1A2B1B2C1C2 |
| Duration : | 30 minute |
| Session : | Online Discussion |
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