Weather
Ecosystems
Landforms
Simple Machines
Motion & Design
100
The layer of the atmosphere we live in.
What is troposphere
100
What is an ecosystem that consists the wildest variety of insects
tropical rain forest
100
water,ice,gravity, and wind
What is the cause of weathering
100
a stiff fulcrum bar rested on a middle support
What is a lever
100
balanced force
What is a force that has a net force of zero
200
rain, snow, sleet, and hail
What is precipitation
200
What is the amount of ecosystems in the world a.4 b.6 c.7 d.100
b.6
200
a river or stream that doesn't reach the ocean
What is a tributary
200
a large wedge used as a ramp
What is a inclined plane
200
the product of the mass and velocity of an object
What is momentum
300
What has the average teperature been doing since 1900
rising
300
What is the predator in the grassland that hunts elephants and other large animals
lion
300
True or False- Weathering is the process of breaking down rock
True
300
What is the simple machine that has an inclined plane wrapped around a pole
screw
300
friction and resistance force
What are the forces that act against an object moving
400
True or False- You measure air pressure with an anemometer
False
400
What are the two treeless biomes? a. desert and tundra b.tropical rain forest and deciduous rain forest c.taiga and desert d. desert and biomes
a.desert and tundra
400
What is a triangle shaped base of a river
what is a delta
400
a simple machine used to cut wood
What is simple machine used to cut wood
400
inertia
What is allways on an object
500
You measure air pressure with ___________
barometer
500
What is the biome that has the greatest diversity
tropical rain forest
500
What is the difference between canyon and meander
a canyon is a deep narrow valley with steep sides.a meander is a looping change of direction in a river or stream
500
a machine with few to no moving parts which makes work easier
What is a simple machine
500
speed
What is the measurement of distance over time
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