Earth and Space

You have probably seen the Moon in the sky but have you ever studied it in detail?

Astronomers use telescopes to see objects far away in space. Did you know that we can only see an object if it emits light or if it reflects light? 

Did you know that what you weigh depends on the strength of gravity? And did you know that the strength on gravity on other planets is not the same as on Earth?

The Moon is the brightest object in the night sky when its whole face is showing. This only happens at full Moon. So why isn't it always a full Moon? 

The level of the sea rises and falls about 2 times each day. We call these changes tides. But what causes them?

Is gravity the same everywhere? Experiment with how the ball reacts in each of the Solar System locations by dropping or throwing the ball. How similar or different is each location to Earth?

Every year, the Earth completes one orbit of the Sun and every year, you have a birthday! And during a year, the Earth rotates 365 times on its axis and we experience 365 sun rises and sun sets.