Clouds and fog

Clouds and fog

Pencil and paperOnline interactive
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Further Resources
This task is about water vapour in clouds and fog.
clouds
Read the information given and answer the following questions about cloud and fog.

Question 1Change answer

a)  The Earth's atmosphere is changing every day.
     Clouds are sometimes very low and other times very high above the Earth.
     What is one thing that may cause clouds to be at different heights above the same place?
     

Question

b)  The chart shows average relative humidity and wind speed for four days. Humidity is water vapour in the atmosphere.
  

Day
Relative Humidity
(Percent)
Wind Speed 
(Kilometres Per Hour)

Monday

90

20

Tuesday

95

3

Wednesday

70

2

Thursday

95

30
 
 

Fog usually occurs when the relative humidity is greater than 90% and it is calm.
On what day is fog most likely?

    • Monday

    • Tuesday

    • Wednesday

    • Thursday

Explain your answer.
Task administration: 
This task can be completed with pencil and paper or online (with SOME auto-marking).
Level:
4
Curriculum info: 
Science, Knowledge, Planet Earth
Keywords: 
water cycle, weather, clouds, fog, data interpretation
Description of task: 
For this task students identify what may cause clouds to be at different heights and then interpret weather information to answer a multiple-choice question about fog.
Curriculum Links: 
Science capabilities
The capabilities focus is brought about by the conversations you have and the questions you ask.
 
Capability: Interpret representations
This resource provides opportunities to:
  • shape science explanations, drawing on experience and their emerging science understandings
  • discuss finding all of the relevant data in a table to answer a question.
 
Science capabilities: 
Interpret representations
Making Better Sense: 
Features
Answers/responses: 
 

Y8 (08/1998)
a) Any 1 of:

  • Air pressure
  • Water vapour density
  • Air temperature
 difficult
b) B  Tuesday easy