The constituents of the Solar System are Mercury , Venus , Earth , Mars , Jupiter , Saturn , Uranus , Neptune , Pluto , natural satellites , meteors , comets , stars and asteroid.
All the planets in the Solar System orbit the Sun.
Activity: Name these planets. a)The furthest planet from the Sun.( )
APPRECIATING THE PERFECT PLACEMENT OF THE PLANET EARTH IN THE SOLAR SYSTEM
If the Earth is too near the Sun,the temperature will rise.Water on Earth will also dry up.Living things will die because of the heat.
If the Earth is too far from the Sun, the remperature will drop.Water will freeze.Plants cannot make their own food and the surrouding will be very dark.
The Earth has oxygen and water which are very important to living things.
ACTIVITY 1: The Perfect Placement of Earth
Fill in blanks with the correct answers.
a)The Earth is the only planet with______________.
b)It has ________and _____________which anable living things to live on it.
c)Living things cannot live on ____________because it is too cold and dark.
d)Green plants need_____________to make their own food.
e)Humans and animals will die if there is no____________.
Study the picture and answer the questions.
Earth
Sun
a) What will happen if the Earth is nearer to the Sun ?
________________________________________
b)What will happen if the Earth is farther away from the Sun?
____________________________________________
c)Why is Earth suitable for living things to live?