Earth and Space Science Crossword

A period of increasing illumination of the Moon’s surface.
A period of decreasing illumination of the Moon’s surface.
Imaginary line dividing the Earth into 2 hemispheres.
Imaginary line joining the North and South poles.
The angle of 23.50 the Earth’s axis makes from the vertical
The spinning of a planet (or moon) on its axis
The motion of a planet as it travels around the Sun.
Tides achieving higher high tides and lower low tides.
Tides achieving higher low tides and lower high tides.
Sun, Earth and Moon alignment, when the Earth’s shadow blocks the Moon
Sun, Moon and Earth alignment, when the Moon shadow blocks the Sun
The attractive force between two celestial bodies.
The rise and fall of Earth’s waters due to gravitational attraction of the Sun and Moon.
The darkest inner section of a shadow.
The lighter outer shadow formed from overlapping light sources.
The cyclical change in Earth’s temperature and climate due to the tilt of Earth’s axis.
The typical temperature and weather variations in a general geographic area.
The day to day changes in temperature, rainfall and humidity, etc.
A period of reduced energy consumption and rest to avoid cold temperatures.
The act of creating new offspring for the continuation of a species.
The act of moving to a new location to seek out food supplies or avoid poor weather.
The increase in temperatures due to greenhouse gases in the Earth’s atmosphere.