What do scientists call a storm with high winds that form over water?
a hurricane
200
What are three forces of erosion?
wind, water, ice
200
Which planet is the closest gas planet to the sun?
Jupiter
200
What behavior is brushing your teeth?
a learned behavior
200
What is the process called when liquid changes into a gas?
evaporation
300
What causes Earth's winds?
the sun
300
What causes mountains to form?
the collision of Earth's tectonic plates
300
What is the hottest planet?
Venus
300
Buffalo travel in herds. Wolves travel in packs. What type of behavior is this?
learned behavior
300
What is it called when gas turns into a liquid?
condensation
400
Which pressure system usually brings rain, high or low?
low pressure
400
What most likely formed a landform that is very smooth?
wind
400
Pluto is no longer called a planet, but what is it now called?
a dwarf planet
400
In a food web, the hawk eats the snake and mouse. The snake eats the mouse. The mouse eats the ragweed. What population would decrease the most if the mouse were removed from the food web? Increase?
decrease=snake increase=ragweed
400
What states of matter can flow?
liquid, gas
500
Does a tornado last a long time or a short time? Why?
short, it uses up all of its energy quickly
500
What is a strangely shaped column of rock formed by wind called?
a hoodoo
500
What is just beyond Pluto?
an asteroid belt
500
What are the differences between animal cells and plant cells?
plant cells have a cell wall, animal cells don't
plant cells contain chloroplast, animal cells don't