Fechar
Day and Night happen because...
Seasons happen because...
Summer
Winter
Lunar Month
Solar Eclipse
Lunar Eclipse
8 phases of the moon
Planets of our Solar System according to distance from the sun and time to orbit the sun
Inner and Rocky Planets
Outer and Gaseous Planets
Gravitational force increases
Gravitational force decreases
Weight is
Weight is measured in
Mass is ...
Satellites can be...
Example of natural satellite
A satellite is...
Different uses for satellites:
To escape Earth's gravity...
Light year
