Ecosystems
What is the original source of all energy?
Sun
What is gravity?
objects being pulled towards the center of earth
Anything that takes up space
Name an example of something in the Geosphere.
Land, Mountain, Canyon, rock
97%
The arrows in a food chain/web represent...
transfer of energy
_______ causes day and night
Earth's rotation around the sun.
Is Air matter? Why or why not?
Yes, because air can take up space when you fill something with it.
weather
Explain how particles in a gas state move
quickly and all over
Energy is used for these 4 things....
repair, moving, growing, body functions
_____causes the seasons
Earth's tilt on it's axis as it revolves around sun.
Produces Gas, changes color, scent, light, and heat
How does erosion effect land?
Water can break rock into smaller places and move it to another area causing the land to change shape or be smaller.
What are the 3 states of matter?
Solid, Liquid, Gas
Plants use ______, ______ and ______ to make food.
Explain why the sun appears to be our brightest and biggest star
It's closest to us
Franky pours 10 grams of a powder into a 40 grams of a liquid. He stirs until he can no longer see the powder. What is the mass of his mixture?
50 Grams
Explain the water cycle
What is the conservation of mass?
The amount of mass will always be the same no matter what you do to it.
What would happen if the sagebrush plants all died out in this desert food chain?
sun -> sagebrush -> grasshopper->lizard -> hawk
The grasshoppers might run out of food and would either die or leave. This would cause the lizards to compete for a different food source or leave. If there are less lizards, the hawks would leave.
Which season do we have the longest shadows at noon? Why?
Winter. Because Earth's tilt on it's axis makes the sun appear lower in the sky and gives us shorter days.
What are the seven ways of identifying matter?
Color, shape, hardness, magnetic, reflective, soluble, texture
Answers vary
Independent- amount of sunlight
dependent- measuring plant height