Std4 Science Test 1

Which of the following is a positive impact of rainfall in our environment?
1. plants lose their leaves
2. animals die easily
3. animals grow fat and produce young ones
4. plants turn yellow and produce less
Wood is the most used fuel in rural areas because it is ___________.
1. cheap
2. expensive
3. difficult to find
4. dangerous to use
Which of these do plants need to grow well?
1. chlorine
2. process
3. disease
4. nutrients
____________ is an example of fuel.
1. wood
2. electricity
3. solar
4. wind
At a landfill waste is __________ and crashed.
1. sorted
2. cleaned
3. dug
4. sedimented
Which of the following is not a source of energy?
1. sun
2. wind
3. electricity
4. burning
We should not cut down trees carelessly because __________________.
1. the future generation may never see them
2. they make our surroundings look dirty
3. plant diseases are found there
4. we already have too many trees
A dumping site is _________________.
1. a hole above ground level
2. a big hole dug in the ground
3. a recycling centre
4. is where waste is thrown on the ground
A Windmill bumps water using _____________.
1. electricity
2. batteries
3. wind
4. solar
The mouth of a funnel is made to be very small to avoid ____________.
1. splashing
2. boiling
3. raindrops
4. evaporation
Pest make plants grow poorly. true or false
We can kill germs through water filtration and sedimentation. true or false
The closet planet to the Earth is Pluto. true or false
Wood, diesel and paraffin burn. true or false
Riding a bicycle instead of using a car can conserve energy. true or false
Which gas is needed by plants to grow?
A seedling was places in a bottle together with a lit candle. The seedling grew poorly. The experiement means that _______ is necessary for the plant growth.
Materials that comes from living things, dead plants and animals is called ___________.
Dams, rivers, streams, and pools are sources of ________ water.
The are ___________ constituents of the soil.