1. Scientific Inquiry
Prathomsuksa 3

2. Whose car goes
the furthest?

3. The twins, Mike and Mary, have each
received a toy car for their birthday. They
have been pushing them along the floor
and letting them go. Both cars went quite
a long way.

4. Then Mike started boasting. “My car will go
much further than yours,” he said. “No, it won’t”
said Mary, “mine will go much further than yours.”
“No, it won’t,” Mike repeated, until eventually
they started arguing and shouting at each other.

5. They started to push the cars faster and
harder but couldn’t agree which of their cars
would go the furthest. Can you help them
stop arguing with each other?

7. Vocabulary

8. fair test

9. measurement

10. force

11. pushing

12. Structure

13. Using “Should” in present tense
We use 'should' for giving advice, an
opinion or a recommendation to people.
Should + infinitive Verb
( V1 )
Example

14. Should + infinitive Verb
( V1 )
- You should build the ramp to test how
far the car goes.
- You should use the ruler for measuring.
- You should push both cars in the same
position on the ramp.

15. Time to do activity!!

16. You will need
ruler
plasticine
smooth floor surface
toy car

17. measure