Wednesday, September 2, 2015
Tuesday, September 1, 2015
Label the layers of atmosphere
Label the layers of the earth’s atmosphere and fill the given blanks.
Greenhouse effect
HA ATHOLHU MADHARUSA ENVIRONMENT STUDIES/ GRADE -5
THE GREENHOUSE EFFECT
The greenhouse effect is responsible for maintaining the temperature of
the Earth.Without any greenhouse effect the average temperature of the Earth
would be about -18˚C, similar to a domestic
freezer. Instead it averages around 15˚C. Many, although not all, gases in the
atmosphere act as so-called ‘greenhouse gases’ and help to warm our
planet. These include: carbon dioxide;
water vapour; methane; chlorofluorocarbons (CFCs) and nitrous oxide.
The diagram below shows the greenhouse
effect. Add labels to the diagram.
Monday, August 31, 2015
Sample test paper of grade five Environmental Studies
HA Atholhu Madharusa
HA Hoarafushi
SECOND CLASS TEST
2015
First Term
Grade 5, Environmental
Studies
Underline
the correct answers. [4 marks]
11. Which part of the tooth act same as an egg shell?
A.
Enamel
B.
Pulp
C.
Nerves
D.
Gum
2. Tooth decay means
A.
Tar in your teeth.
B.
Hole in your teeth.
C.
Beautiful tooth.
D.
Enamel in your teeth.
3. Fish head is rich source of ____________.
A. Iodine
B. Iron
C. Protein
D. All of the above.
4. ______________ increase cholesterol level in your blood?
A.
Nicotine
B.
Carbondioxide
C.
Tar
D.
Carbon monoxide
Fill in the blanks with the given
words. [4 marks]
iron Anaemia iodine Balance diet
Water Fluoride protein
heart diseases
1. ______________ is caused by decrease in level of iron in
the blood.
2. Goiter is caused by poor intake of ______________.
3 3. Kwashiorkor is caused by poor intake of ______________.
4. Red meat, spinach, dried fruits, eggs are rich in ______________.
5.Obesity leads to ______________.
6. We can prevent tooth decay by using _____________ tooth paste.
7. ______________ is needed for
digestion of foods.
8. ______________ is one which contains proper proportion of food from
all food groups.
Answer
the following questions. [6 marks]
11. What is malnutrition? [1mark]
___________________________________________________________________________________________________________________________________________________________
22. What is passive smoking? [1mark]
________________________________________________________________________________
3 3.Write one symptoms of tooth decay? [1mark]
_______________________________________________________________________________
4 4. Name two healthy habits and unhealthy habits? [2
mark]
healthy habits
|
unhealthy habits
|
5. What is plague? [ 1 mark]
_________________________________________________________________________
6. Observe the picture
and explain the process of tooth decay. [ 4 marks]
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ALL THE BEST
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