Show:
Earth
Sun
Moon
This and That
Animal Adaptations
100

This causes the Earth's seasons.

What is the tilt of the Earth and/or the revolution of the Earth around the Sun?

100

The sun is a big fiery ball of gas called this.

What is a "star"?

100

It takes this long for the moon to revolve completely around the Earth.

What is one month?

100
This keeps the Earth and moon in their orbits.
What is "gravity"?
100

Diurnal animals use mostly this one of the five senses.

What is sight?

200

This causes day and night.

What is the rotation of the Earth on its axis?

200

The Sun is this many times farther away from the Earth than the Moon. 

What is "400"?

200

During this phase of the moon, it appears like a sliver or toenail.

What is a "crescent moon"?

200
It takes this long for the Earth to complete on full rotation.
What is 24 hours?
200

Many nocturnal animals do not see these.

What are "colours"?

300
The Earth takes this long to revolve around the sun.
What is 365 1/4 days?
300

This day of the year has the shortest number of daylight hours (the shortest day of the year).

What is the "winter solstice" on Dec 21st?

300

During this phase of the moon, we can see no sunlight reflecting off the face of the moon.

What is a "new moon"?

300

As we see less and less of the lit part of the moon, we say that it is doing this.

What is "waning"?

300

When an animal creates its own light to help it see and scare away predators.

What is "bioluminescence"?

400

When it is winter in the Northern hemisphere, it is this season in the Southern hemisphere.

What is "summer"?

400
This occurs when the moon moves between the sun and the Earth, blocking some the the sun's light.
What is a "solar eclipse"?
400
During this process, the moon moves through the Earth's shadow, and cannot be seen for a short time.
What is a "lunar eclipse"?
400

The sun appears higher in the sky during this season because of the tilt of the earth.

What is "summer"?

400

This is when an animal makes a high pitched sound that bounces back to help it "see" in the dark.

What is "echolocation"?

500
The imaginary line horizontally around the middle of the Earth.
What is the "equator"?
500

A solar eclipse is darkest if you are standing in this part of the Moon's shadow.

What is the "umbra"?

500

The moon's gravity affects this part of the Earth, changing it daily on our beaches.

What are "ocean tides"?

500
We have this special day every 4 years in February because it takes the Earth 365 and 1/4 days to revolve around the sun.
What is "Leap Year Day"?
500

This term describes when one of an animal's ears is lower than the other. 

What is "asymmetrical hearing"?