Oceans/Weather
Matter
Matter 2
Body Systems
Body Systems 2
100
water that moves in a certain direction or flows like a river through the ocean
What is a current
100
the amount of matter that makes up an object
What is mass
100
the particles in this state are close together, in a neat and regular order
What is a solid
100
a four-chambered muscluar organ that pumps blood
What is the heart
100
the control center of the nervous system, which is protected by the skull
What is the brain
200
instrument used to measure air pressure
What is a barometer
200
the state of matter that takes the shape of its container
What is a liquid
200
these properties can be observed by looking at an object
What are physical properties
200
blood vessels that carry blood away from the heart
What are arteries
200
body parts that have special nerve cells for gathering information about surroundings
What are sense organs
300
the temperature scale that scientists use
What is Celsius
300
the properties of matter that tell how one substance reacts with another substance
What are chemical properties
300
these kinds of changes are easier to reverse (take back)
What are physical changes
300
the watery part of blood
What is plasma
300
substances that the body uses for energy, growth, and repair
What are nutrients
400
a deep, narrow valley in the ocean floor
What is a trench
400
a change where you cannot get matter back; for example, rusting on your bike
What is a chemical change
400
adding heat to a solid is called
What is melting
400
blood vessels that carry blood to the heart
What are veins
400
organ where muscles contract and push food downward toward the stomach
What is the esophagus
500
when air moves from an area of high pressure to an area of low pressure, it causes
What is wind
500
anything that takes up space and has mass
What is matter
500
this state of matter has particles that are far away and move very quickly
What is a gas
500
the system that sends and receives messages for the body
What is the nervous system
500
nerve cells with a special shape that contain tiny branches
What are neurons
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