Astronomy
Mars is also known as the _______ _______
Red Planet
All living things are made of
Cells
Anything that has mass and takes up space
Matter
The Earth is about ______________ years old
4.5 billion
Warm air ________ and Cold air ________.
Rises and sinks
The closest planet to the sun is
Mercury
Organisms inherit traits from their ______
Parents
Basic unit of Matter
Atom
Water _____________ when it freezes
expands
Ocean tides are caused by the _____________
Moon's gravity
Comets contain: Ice, Dust and _____
Rock
Chloroplasts are found in what type of cells ?
Plant cells
Energy can not be created or destroyed. It can only be ___________
transfered
The 4 major layers of the Earth's crust are:
Crust, Mantle, inner core, outer core
Where do aquifers hold water ?
Underground
This planet rotates on it's side
Uranus
DNA carries _________ ________
genetic information
Groups of atoms that are bonded together are called
Molecules
Tectonic plate movement causes
Earthquakes
Where do volcanoes often form?
Plate boundaries
What keeps planets in orbit around the sun?
Gravity
Photosynthesis releases _________
Oxygen
Chemical changes create new ____________
Substances
Igneous rocks form from
cooled magma or lava
Uneven heating of the Earth's surface causes ______
Wind