Solar energy and the Earth's seasons

Without the Sun, life on Earth would not have been possible, because

• plants are dependent on its energy for water.

• plants are dependent on its energy for photosynthesis.

• plants are dependent on its energy for oxygen.

radiates

• sends out

• energy from the Sun

• Energy stored in a substance that can release energy in a chemical reaction

• process in which plants use the energy in sunlight to absorb carbon dioxide and produce carbohydrates and oxygen

solar energy

• sends out

• energy from the Sun

• Energy stored in a substance that can release energy in a chemical reaction

• process in which plants use the energy in sunlight to absorb carbon dioxide and produce carbohydrates and oxygen

photosynthesis

• sends out

• energy from the Sun

• Energy stored in a substance that can release energy in a chemical reaction

• process in which plants use the energy in sunlight to absorb carbon dioxide and produce carbohydrates and oxygen

chemical potential energy

• sends out

• energy from the Sun

• Energy stored in a substance that can release energy in a chemical reaction

• process in which plants use the energy in sunlight to absorb carbon dioxide and produce carbohydrates and oxygen

Energy from the Sun is called

• chemical energy

• solar energy

• kinetic energy

• potential nuclear energy

The Sun radiates

• heat and light energy

• photosynthesis

The amount of energy that any part of Earth receives on any day depends on

• the length of that day and the season of the year.

• the huge amount of heat and light energy.

• the model of the Earth's globe.

The Earth has two movements:

• rotation (24 hours) and revolution (365 1/4 days)

• revolution (24 hours) and rotation (365 1/4 days)

• rotation (28 days) and rotation (24 hours)

Choose all the correct answers: The Earth's axis is...

• an imaginary line

• goes through the centre of the Earth from the north pole to the south pole

• not vertical, it is tilted by an angle of 23,5 degrees

• always pointed in the same direction as it orbits the Sun.