MATTER
What are the 3 states of matter?
solid
liquid
gas
What is matter made of?
atoms
What is ecology the study of?
interactions between organisms & their environment
What is an electric circuit?
a path for electricity to flow
A watershed is:
an area land that drains into a stream, river, or lake
What happens to the particles in a substance when it changes from a liquid to a gas?
they move faster and spread farther apart
Which is an example of potential energy?
a rolling soccer ball or a stretched rubber band
a stretched rubber band
What do you call all the living and non-living things in an environment?
ecosystem
What is needed to make a complete circuit?
battery, wires, and a lightbulb
Watershed boundaries are determined by:
high points in the landscape
Which state of matter has a definite shape and a definite volume?
solid
Which form of energy is stored in food and fuel?
A group of the same species living in the same area is called a:
population
In a parallel circuit, if one bulb goes out, what happens to the others?
the rest of the bulbs stay on
DAILY DOUBLE
YOU CAN WAGER UPTO 1000 POINTS
Answer 500-point question
What is it called when a solid changes directly into a gas without becoming a liquid first?
sublimation
When ice melts into water, what type of change has occurred?
physical change
Which organism is a producer?
wolf, grass, or mushroom
grass
What do we call the flow of electric charge in a circuit?
current
TRUE OR FALSE:
Not all people live in a watershed.
False
Which state of matter has no definite shape and no definite volume?
gas
What type of energy is produced by vibrating objects and travels through air or other materials?
sound energy
Which of the following shows the flow of energy in an ecosystem?
food web
What is the function of a switch in a circuit?
it opens / closes the circuit
How do watersheds get their names?
for the body of water they drain into