# Days, Months and Years

In this worksheet, students will explore why we have days, months and years.

Key stage:  KS 3

Curriculum topic:   Physics: Space Physics

Curriculum subtopic:   Seasons and the Earth's Tilt

Difficulty level:

### QUESTION 1 of 10

Our planet is the Earth: it is shaped like a sphere and gets heat and light from the Sun. The Earth spins on its axis. A day on Earth is 24 hours, because it takes it that long to make a complete spin. Have a look at Earth being tilted on its axis.

The spin of the Earth makes us see the Sun rising in the east in the morning and setting in the west in the evening. The half of the Earth that faces the Sun has day and the other half night. This alternates as the Earth spins.

It takes the Earth one year (365.25 days) to orbit the Sun. In the summer, days are longer and the Sun shines higher in the sky. The Earth's orbit is like an ellipse. Check the shape of an ellipse in the following diagram.

Our calendar year is 365 days long, so every four years we add an extra day to make up the time; this is called a leap year (when February has 29 days).

A satellite is something that orbits around a planet. The Earth has a natural satellite: the Moon.

What is the name of our planet?

What is the Earth's shape?

a sphere

a circle

a cone

Where does the Earth take heat and light from?

the Moon

the Sun

The Milky Way

Where does the Earth spin on?

the equator

its axis

the North Pole

How long does it take the Earth for a complete spin?

365.25 days

12 hours

24 hours

Is this statement true or false?

The part of the Earth that faces the Sun has night.

true

false

How long is the Earth year?

24 hours

29 days

365.25 days

What happens during a year?

The Earth spins on its axis once.

The Earth orbits the Sun once.

We get day and night.

What is a leap year?

Tick two options.

a year when February has 29 days

a year when February has 28 days

every four years we take away a day from the calendar

every four years we add an extra day to the calendar

What is the Earth's orbit like?

a sphere

a circle

an ellipse

• Question 1

What is the name of our planet?

Earth
EDDIE SAYS
Our planet is the Earth. E must be capital.
• Question 2

What is the Earth's shape?

a sphere
EDDIE SAYS
The Earth is shaped like a sphere.
• Question 3

Where does the Earth take heat and light from?

the Sun
EDDIE SAYS
The Earth takes heat and light from the Sun.
• Question 4

Where does the Earth spin on?

its axis
EDDIE SAYS
The Earth spins on its axis.
• Question 5

How long does it take the Earth for a complete spin?

24 hours
EDDIE SAYS
It takes the Earth 24 hours for a complete spin on its axis.
• Question 6

Is this statement true or false?

The part of the Earth that faces the Sun has night.

false
EDDIE SAYS
The part of the Earth that faces the Sun has day. The other half has night.
• Question 7

How long is the Earth year?

365.25 days
EDDIE SAYS
The Earth year is 365.25 days.
• Question 8

What happens during a year?

The Earth orbits the Sun once.
EDDIE SAYS
The Earth orbits the Sun fully during a year.
• Question 9

What is a leap year?

Tick two options.

a year when February has 29 days
every four years we add an extra day to the calendar
EDDIE SAYS
Every four years we add an extra day to the calendar and that's when February has 29 days.
• Question 10

What is the Earth's orbit like?

an ellipse
EDDIE SAYS
The Earth's orbit is an ellipse.
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