The big picture
Seven ideas show how scientists think. Each one has a small lab.
| Idea | Remember |
|---|---|
| A question worth asking | A prediction needs a question you can test with a measurement. |
| What a measurement carries | A number needs a unit. Science shares symbols and SI units. |
| How close is close enough | A rough estimate shows whether an answer makes sense. |
| A model is a tool | A model keeps what matters for one question. |
| One idea, many records | Law: pattern. Theory: reason. Principle: broad idea. |
| The honest report | A failed prediction makes scientists re-check their ideas. |
| Three strands, one method | Real problems often need several branches together. |
Now open Chapter 1 of your Class 9 book, Exploration. Read it using these ideas.
Next comes Cell: The Building Block of Life.