CONTACT FORCES
This contact force occurs when two surfaces rub against each other.
What is friction?
This is the energy that comes from the movement of particles.
What is thermal energy?
A community of living things and their environment.
What is an ecosystem?
Organisms that break down dead organisms and waste.
What are decomposers?
Water that falls from clouds.
What is precipitation?
A force that moves an object away from you.
What is a push?
The faster particles move, the ______ thermal energy they have.
What is more?
Removing a species from an ecosystem can affect many other organisms. True or False?
What is True?
Where does the matter in an animal's body come from?
What is the food it eats?
A long period with very little precipitation is called a ______.
What is a drought?
If unbalanced forces act on an object, what happens?
What is the object changes motion?
Thermal energy moves from warmer objects to ______ objects.
What are cooler objects?
Name one resource an animal needs.
What is food, water, shelter, or space?
Plants take in carbon dioxide and water to make what?
What is sugar (glucose/food)?
A community that receives too much water may experience a ______.
What is a flood?
A hockey puck slides farther on ice than on concrete because ice has ______ friction.
What is less friction?
Which has more thermal energy: a hot cup of coffee or an ice cube?
What is a hot cup of coffee?
If an animal cannot find enough food, what may happen to its population?
What is it may decrease?
Matter moves through ecosystems in a ______.
What is cycle?
Which community is more likely to experience flooding: one with increasing rainfall or decreasing rainfall?
What is increasing rainfall?
In a friction investigation, a student tests wood, carpet, and tile. What variable is being changed?
What is the type of surface?
What happens to particles when an object is heated?
What is they move faster?
Why might different species compete with each other?
What is they need the same resources?
Where does a plant get the matter it needs to grow?
What is carbon dioxide from the air and water?
Scientists compare climate graphs from two communities. One community shows increasing temperatures and decreasing precipitation. What problem might this community face, and what evidence supports your claim?
What is a drought? The evidence is increasing temperatures and decreasing precipitation over time.