Earth's Systems
The continuous process by which water moves through Earth’s atmosphere, surface, and underground.
The water cycle
The layer of gases surrounding Earth.
Atmosphere
Anything that has mass and takes up space is the meaning of __?
A. Matter B. Space C. Earth
A. Matter
A cell is the basic unit of life? True or False
True
Using your senses to gather information is called?
Observation
When liquid water on Earth’s surface turns into water vapor.
Evaporate or Evaporation
A measure of how much water vapor is in the air.
Humidity
State of matter with a fixed shape and volume is the meaning of a __?
A. Gas B. Solid C. Liquid
The organelle that controls most cell activities and contains DNA is the nucleus. True or False
True
An educated guess you test with an experiment.
Hypothesis
The movement of water over land into rivers, lakes, and oceans.
Runoff
Clouds that are thin and wispy, found at high altitudes.
Cirrus Clouds
State of matter with no fixed shape or volume is called a __?
A. Gas B. Liquid C. Solid
A. Gas
Photosynthesis is structure that carries water and nutrients in plants. True or False?
False (Zylem is described)
The factor you change on purpose in an experiment is called ?
the independent variable
A feature formed when a river cuts through elevated land, creating deep valleys with steep sides.
Canyon
A storm with lightning, thunder, heavy rain, and sometimes hail.
Thunderstorm ⛈
Change from a solid to a liquid.
A. Melting B. Evaporation C. Habitat
A. Melting
The circulatory system is The system that transports blood throughout the body. True or False
True
The factor you measure or observe in an experiment is called ?
the dependent variable
The layer of Earth that includes all water on or near the surface.
Hydrosphere
Scale used to rate the strength of tornadoes.
Fujita scale
The amount of matter in an object.
A. Liquid B. Evaporation C. Mass
C. Mass
The layer that surrounds and protects all cells is called the digestive system. True or False
False (Cell Membrane described)
Items you keep the same in an experiment to make it fair.
controlled variables