Which is smaller? A millimeter or a centimeter?
A millimeter
True or false: A gas has neither a fixed shape, or a fixed volume
True
All the gas and the air surrounding the earth
The atmosphere
What percent of the earth's water is saltwater?
97%
What word means the moon is "shrinking"?
Waning
An educated guess or prediction is called..
a hypothesis
What types of materials are good conductors of electricity?
Metals
How are igneous rocks formed?
When magma or lava cools and hardens
What step of the water cycle occurs when water falls from the atmosphere to the ground?
Precipitation
What is the shortest day of the year called?
The winter solstice
What are conditions that need to be met in a project?
Criteria
What kind of matter has a fixed volume but no fixed shape?
Liquid
Altitude
Where is groundwater stored?
Aquifers
What phase does the moon have to be in for a lunar eclipse to occur?
Full moon
How many centimeters are in a meter?
100
The property of matter that describes a substance's ability to dissolve in water.
Solubility
What type of tectonic plate boundary is found where two plates pull apart from each other?
Divergent
How much salt is in water if referred to as..
Salinity
Explain the difference between Earth's rotation and revolution
Rotation is spinning on an axis (a day), revolution is orbiting around another object (a year)
Anything that prevents technology from producing the desired result
Limitation
What are two types of energy that can be reflected?
Light energy and sound energy
What processes form sedimentary rocks?
Compaction and cementation
Why can't we access most of the earth's fresh water?
Because it is trapped in the ground and frozen in ice
What phase of the moon is this?
Waning Gibbous