Std4 Science Test 3

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The mouth of a funnel is made to be very small to avoid
1. splashing
2. boiling
3. raindrops
4. evaporation
Which gas is needed by plants to grow?
1. carbon dioxide
2. oxygen
3. carbon monoxide
4. hydrogen
A seedling was placed in a bottle together with a lit candle. The seedling grew poorly. The experiment means that ____________ is necessary for plant growth.
1. water
2. air
3. sunlight
4. shade
Dams, rivers. streams and pools are source of __________ water.
1. surface
2. safe
3. cold
4. underground
Materials that comes from living things, dead plants and animals is called ______________.
1. Inorganic matter
2. Organic matter
3. Air
4. Water
There are _________ constituents of the soil.
1. two
2. three
3. four
4. five
What is germination?
1. digging the soil
2. protecting the new plant growth
3. harvesting of plants
4. beginning of new plants
A mixture of gases which are found in the atmosphere are called _______________.
1. water
2. plants
3. sun
4. air
The process whereby crops are removed from the ﬁeld and are ready for eating is called ______________.
1. weeding
2. controlling diseases
3. cultivating
4. harvesting
Any plant or animal that causes harm to crops is a __________________.
1. waste
2. disease
3. pest
4. poison
Which insects damage the roots of crop plants?
1. locusts
2. termites
3. stalk borer
4. goats
An open space where waste is dumped but is not sorted out is called ______________.
1. compost
2. landﬁll
3. dumping site
4. pit
Why are crop remains burnt? So that we ___________________________.
1. destroy pest eggs
2. get rid of crops
3. make the soil hot
4. pass on diseases
Waste is sorted into various groups before put in the ________________.
1. dumping site
2. bin
3. pit
4. landlill
Once dumping places are full of waste. They should be covered with _____________________.
1. leaves
2. waste
3. soil
4. vegetation
The three main parts of an insect are ____________________
1. Leg, wing and head
2. Abdomen, thorax and head
3. Simple eye, compound eye and antennae
4. Wings, joint leg and head
The antennae of insects are also known as _______________.
1. horns
2. feelers
3. thorax
4. abdomen
The law in Botswana forbids the killing of ____________ animals without a license.
1. domestic
2. farm
3. wild
4. chiefs
Blood is a liquid in which __________ are carried to all parts of the body.
1. Urine
2. tears
3. nutrients
4. saliva
What should be done immediately you come into contact with another person’s blood?
1. wipe your hands with a tissue
2. wash your hands with soap
3. show your friends
4. go to the hospital
What is animal conservation?
1. Killing animals
2. Protecting the animals
3. Shooting the animals
4. Catching animals in traps
People who hunt and kill wild animals without permission are called _______________.
1. soldiers
2. thieves
3. poachers
4. policemen
HIV/AlDS virus can be passed on to other people through __________________.
1. sharing a cup and a spoon
2. blood and other body fluids
3. playing with the person
4. greeting the person
The biggest part of an insect is the __________________.
1. Thorax
2. Wings
3. head
4. abdomen
Which animal help in removing the rotting bodies of other animals?
1. cats
2. dogs
3. vulture
4. ant bear
One way of getting rid of waste produced in our homes is to ____________________.
1. leave it on the streets
2. keep it in the house
3. burn it
4. throw it in the yard
Chemicals used to kill insects are called ___________________.
1. house sprays
2. insecticides
3. powders
4. chemicals
Field crops are usually grown in _______________ areas.
1. expensive
2. large
3. small
4. urban
The states of water are gas, liquid and _____________.
1. solid
2. hard
3. cold
4. hot
Water comes in ___________ states.
1. two
2. three
3. four
4. one
Which of the following helps to conserve soil?
1. vegetation
2. Erosion
3. Cutting down trees
4. Wind
Water will flow away and carry soil with it if there _____________________________.
1. are many trees growing in the area
2. is little rainfall
3. is no plant cover on the soil
4. are animals feeding on tree leaves
Unwanted plants which grow with crops are ________________.
1. fertiliser
2. weeds
3. stalks
4. creepers
When there is no rainfall ________________________.
1. animals produce young one
2. plants produce ﬂowers
3. insects come to life
4. plants grow poorly
Where should a landﬁll be located?
1. near the river bank
2. close to our homes
3. away from our houses
4. near the industries
How can we get rid of waste?
1. burning it
2. watering it
3. storing in the pantry
4. storing it.
We live on the planet namely _________________.
1. Mars
2. Uranus
3. Jupiler
4. Earth