Weather
What has the greatest effect on wind speed?
air pressure
What type of organisms are responsible for recycling the remains of a dead plant or animal to the soil?
decomposer
Which best explains what happens to most materials when they are heated?
They expand
A ball was rolling fast and then slowed. Which most likely caused the ball to slow?
friction
A metal can rusting is an example of a _______ change.
chemical
In which direction do prevailing westerlies flow?
West to east
In a food chain, the sun provides energy for an apple tree to grow. A deer eats an apple from the tree. Which is a consumer?
deer
It was very sunny outside, and Mike wanted to wear a shirt that would keep him cool. Which color shirt would be best for Mike to wear?
White
A student uses the same force to push a golf ball, a ping pong ball, a bowling ball, and a baseball. Which will move the fastest?
the ping pong ball
An ice cube melting is an example of a _________ change.
physical
What form of precipitation, in which ice crystals freeze over and over, frequently occurs during thunderstorms?
hail
Which organisms would be affected first if the amount of light were reduced in an ecosystem?
producers
Mandy is helping her mom cook. She takes a glass casserole dish directly from the refrigerator and puts it in the oven. Which best explains the result of putting the cold dish in the hot oven?
The dish cracks or breaks
Which is true when equal and opposite forces are applied to an object?
There is no change in motion
Ethan built a tower using 5 red legos that weighed 2 grams each and three blue ones that weighed 1 gram each. What is the mass of his tower?
13 grams
These are described as high, wispy clouds.
cirrus
Which type of organism eats only plants?
herbivore
How does heat transfer?
From hot to cold
Distance divided by time is.....
speed
Burning wood is an example of a ________ change.
Chemical
This stage in the water cycle is when a gas changes into a liquid?
condensation
In a food web, how are consumers most often described?
By the food they eat
On a hot day in the sun, why does Robert use a foam can holder to keep his drink cool?
It insulates the cold drink
An object in motion stays in motion and an object at rest stays at rest is the law of...
Inertia
A piece of wood is sawed into several pieces. This is an example of a _______ change.
physical