http://blogazder.blogspot.com/. Powered by Blogger.
RSS

SCIENCE YEAR 4

MEASURING LENGTH

People in ancient times used different parts of the body to measure length :






ARM SPAN






























CUBIT
























FOOT
























SPAN

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

SCIENCE YEAR 6

SECTION B

Conclusion

     Questions:

    i)  What is your conclusion based on the experiment?
    ii)  What can you conclude from the experiment?
    iii)  Write a conclusion based on the experiment you have done.
    iv)  What have you learnt from this experiment?
    v)  Based on the investigation, what is the relationship between the number of fish and the competition among them?

Suggested answers

i)  The less the number of fish in the aquarium, the heavier the weight of the fish.
ii)  The more the number of fish in the aquarium, the lighter the weight of the fish.
iii)  The less the number of fish in the aquarium, the bigger the size of the fish.
iv)  The more the number of fish in the aquarium, the smaller the size of the fish.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

SCIENCE YEAR 6

SECTION B
Inference

    
     Questions:

     i)  Explain the differences in weight.
     ii)  Give a reason for that / your observation.
     iii)  State one inference based on the observation.
    iv)  Why it happened?
    v)  Why do you think it happened?

Suggested answers

     i)  The fish in aquarium M is heavier than the fish in aquarium N because they get more food among themselves.
     ii)  The fish in aquarium M is bigger than the fish in aquarium N because they share food with lesser number of fish.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

SCIENCE YEAR 6

SECTION B

Observation
     The table below shows the result of the investigation:
     

Day
Aquarium M (four fish)
Aquarium N (seven fish)
Weight without fish
Weight with fish
Weight of four fish
Weight without fish
Weight with fish
Weight of seven fish
1
1.5 KG
3.5 KG
2 KG
1.5 KG
3KG
3.5KG
12
1.5KG
3.5KG
2 KG
1.5KG
3 KG
3.5KG


Questions:
i)   What do we need to observe?
ii)    What can be observed about the condition of the weight of fish?
iii)  What is your observation based on the experiment?
iv)  What are we observing?

Suggested answers
i)  The average weight of fish in aquarium M is heavier than the average weight of fish in aquarium N.
ii)  The average size of fish in aquarium M is bigger than the average size of fish iN aquarium N.
iii)  The average weight of fish in aquarium N is lighter than the average weight of  fish in aquarium M.
iv)  The average size of fish in aquarium N is smaller than the average size of fish in aquarium M.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

SCIENCE YEAR 6

SECTION B

Identify Variables

Questions

i)    What to change (manipulated variable).
ii)   What to measure / observe (responding variable).
iii)  What to keep the same (constant variable)
    
Questions :
i)  What is changed ?
ii)  What is measured / observed?
iii)  What is kept the same?

Suggested answers

i) The number of fish. (Manipulated variable)
ii) The weight of the fish. (Responding variable)
iii) The amount of fish food, size of plastic aquariums, amount of water. (Fixed/constant 
     variable)

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

SCIENCE YEAR 6

SECTION B
Hypothesis                                                                                        

Questions

i)  Write a hypothesis based on this experiment.
ii) What can you say about the hypothesis of this experiment?
iii) State one hypothesis based on this experiment.

Suggested answers

 i) The more the number of fish, the less the weight of the fish.
ii)  The less the number of fish, the more the weight of the fish.
iii)  If the number of fish is more, then the weight of fish is less.
iv)  If the number of fish is less, then the weight of fish more.

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

SCIENCE YEAR 6

SECTION B

Aim of experiment

Questions:
 i)   What is the aim of the investigation?
 ii)  What is the purpose of the investigation?
 iii) What do you want to find out from the investigation?
 iv) What do you want to study from the investigation?
  v)  What do you want to proof from the investigation?

Suggested answers :
         
To investigate the relationship between what to change and what to observe/measure.

i)     To investigate/ study the relationship between the number of fish (WTC) and    
  the weight of fish after twelve days 

  • Digg
  • Del.icio.us
  • StumbleUpon
  • Reddit
  • RSS

World Clock