Earth and Space Science Concepts

Star

• A huge burning sphere of gas fueled by nuclear fusion

• A small, cold rock orbiting a planet

• A massive collection of ice and dust in space

• A bright object that twinkles in the night sky

Protostar

• When a star begins to form from a cloud of gas and dust

• When nuclear fusion begins and a star gives off light for the first time

• When a star reaches the end of its life cycle

• When a planet forms around a star

White Dwarf

• A type of star that is still undergoing nuclear fusion

• A star that has exploded in a supernova

• Formed when a low-mass star has exhausted all its nuclear fuel and lost its outer layers

• A massive star that has collapsed under its own gravity

Divergent Boundary

• The type of plate boundary where two plates collide

• The type of plate boundary where two plates slide past each other

• The type of plate boundary where two plates separate or divide

• The type of plate boundary where one plate is forced under another

Plate Boundary

• The location where one tectonic plate comes in contact with another

• A region where tectonic plates are moving away from each other

• An area where tectonic plates slide past each other

• A place where tectonic plates are formed

Weather Symbol

• A sign used to represent the conditions in a certain area

• A type of cloud formation

• A measurement of temperature

• A forecast for the week

Supernova

• An explosion of a high mass star

• A type of black hole

• A large asteroid impact

• A solar flare

Low Tide

• Occurs when ocean water is at its highest level during the day

• Occurs when ocean water is at its lowest level during the day

• Occurs when ocean water is at a moderate level during the day

• Occurs only during the night

Winter

• The Earth is tilted away from the Sun resulting in less daylight and lower temperatures

• The Earth is tilted towards the Sun resulting in longer days and warmer temperatures

• The Earth is at its closest point to the Sun resulting in milder weather

• The Earth experiences equal daylight and darkness throughout the year

Seafloor Spreading

• The process that occurs at mid-ocean ridges, where new oceanic crust is formed

• The movement of tectonic plates away from each other

• The sinking of oceanic crust into the mantle

• The formation of mountains due to tectonic collisions