<< Chapter < Page | Chapter >> Page > |
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
7. If the earth moves at a speed of 30 km per second, how long does it take the earth to move from one line of longitude to the next. Remember, there are 360 lines of longitude.
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
group assessment: making deductions | ||
1. We could make direct deductions. | Yes | No |
2. We could give a sensible explanation for human survival. | Yes | No |
3. We could formulate a rule about the distance of planets from the sun. | Yes | No |
4. We could give a sensible explanation for the above. | Yes | No |
5. We could calculate how long it takes the earth to move through one degree of longitude. | Yes | No |
6. We could answer most of the questions independently. | Yes | No |
7. Co-operation in the group was good. | Yes | No |
8. Each individual made a contribution. | Yes | No |
Group judges success of the exercise: ______________________________________
TASK 8
8.1 Mars – a rare planet
Read the facts below and discuss the questions in your groups.
QUESTIONS:
1. Why do scientists think that there was water on Mars long ago?
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
2. If there was liquid water on Mars long ago, what can we deduce about the temperature on Mars at that time?
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
3. Why is Mars so cold now?
_____________________________________________________________________
_____________________________________________________________________
Notification Switch
Would you like to follow the 'Natural sciences grade 7' conversation and receive update notifications?