1. energy
2. healthy
3. unique
4. scamper
5. blowing
6. Energeia
7. excitement
8. petrol
9. wind
10.produce
True or False:
1. Birds get energy to fly from the air.- False
2. Animals, birds and humans get energy from the
food they eat.- True
3. Animals and birds use the energy to move from
one place to another. True
4. All food gives
the same amount of energy. False
Fill in the blanks:
1. We get energy from the food we eat.
2. The process of making food by the plants using
sunlight is called photosynthesis.
3. Wind energy
is used by windmills to produce electrical energy.
4. Bees buzz and butterflies flutter
because of energy.
5. The word energy comes from the Greek word Energeia.
6. The energy of moving water is used to produce hydro
electricity.
Answer the questions:
1. Define:
a. Energy :
The ability to do work.
b. Solar
energy : The energy that we get from the sun in the form of sunlight(light and
heat).
2. Why do we need energy?
Ans.
We need energy to perform day to day activities.
3. List any 3 examples that uses energy.
Ans. Energy is required for
playing, swimming, dancing etc.
4. How do the plants make their food?
Ans.
Plants make their own food with the help of chlorophyll in leaves, air , water
and in the presence of sunlight.
5. What happens when the wind blows?
Ans.
When the wind blows it causes energy to move around and make objects move. e.g.:
Trees swaying
6. Where do the vehicles get their energy from?
Ans.
The vehicles get their energy from the fuels such as petrol,
diesel, gas etc.
7. Name the main sources of energy.
Ans.
The sun, water, wind, food and fuels such as petrol, diesel, gas are the main sources of energy.
8. How do we get energy?
Ans.
We get energy from healthy and nutritious food.
9. Name the source of energy used in factories to
produce goods.
Ans.
Electricity is the source of energy used in factories to produce goods.
Give reasons:
a. Energy is
very special.
Ans – Energy is special as it makes our lives easy and our world lively
and unique. It helps us to do all our work. So we should use it effectively and
conserve it. Energy should never be wasted.
b. The sun is an
important source of energy.
Ans. Life will not exist on the earth without the sun. We will not
be able to see things around us, we will not feel warmth/heat . The sun is the important
source of energy as it provides us energy in the form of light and heat.
