Track quiz
Nine quick questions. Use the table if you get stuck.
| Lesson | The rule |
|---|---|
| Ideas can change | Keep an idea while every record you trust fits it. A record you trust may not fit. Then drop the idea, or re-check the record. |
| What changes a mind | Look at the evidence for each side. Hold the side the evidence backs best, for now. |
| Better tools | A finer grid gives smaller squares. Two things in one square look like one thing. |
| A model that works | A model works only where it fits. Check a new case before you trust it. |
| Checking each other | Compare the gap between two averages with the jump inside one group. A gap far below the jump gives no sign of a difference. Repeat the test to be sure. |
| Still going | A test tells two ideas apart only if they expect different things. |
| Questions | One answer can fit many questions. Asking a good question is part of science. A tested idea can still raise new questions. |
| Care | People's choices change nature. Using less and wasting less helps the future. Science can show which choices help. |
An idea says: slow tap only when the tank is low. A checked morning has a full tank and a slow tap. What now?
Two neighbours give opposite reasons for a leak. One has lived there thirty years. What decides it?
A photo shows one blob. It may be two lamps. What could show it?
The line says a stick is −6 cm long at 75 minutes. What went wrong?
A group's trials jump by 7. Two groups' averages are 2 apart. What do you say?
Two ideas both expect a slow tap on Monday. The tap is slow. What does Monday tell you?
Two ideas still fit every record. What is the next step?
The answer is "Wait until it cools." Which question could lead to it?
A worn-out LED lamp needs throwing away. What is the careful choice?
Chapter 1, The Ever-Evolving World of Science, is in your NCERT book. Read it this week.
Next: Exploring Substances: Acidic, Basic, and Neutral.