Vocabulary
When
Why
How
What
100

What does "tilt" mean?

To lean to one side.

100

When does the spring equinox occur?

around March 20th

100

Why do days get longer after the equinox?

because the earth tilts towards the sun

100

How many equinox's are there in a year?

2 (spring and autumnal)

100

What happens to the days after spring equinox?

They get longer

200

What does "track" mean?

to follow and study something

200

When is the first day of spring?

March 20

200

Why does the weather get warmer after the spring equinox?

because the earth tilts closer towards the sun

200

How long is it between the spring and autumnal equinoxes? 

6 months

200

What happens to the weather after spring equinox?

It gets warmer

300

What does "equal" mean?

Two things are the same.  

300

When do scientists consider the first day of spring?

March 1

300

Why do scientists use March 1st as the first day of spring?

marking it on the first day of the month helps them track weather patterns

300

What happens after the spring equinox if you live closer to the equator?

The sooner you will see and feel spring.

400

What is the "equator"?

An imaginary line around the center of the earth that splits it into two hemispheres.  

500

What is an "equinox"?

When the earth lines up with the sun so day and night are exactly the same length.