science 1
What are the 4 layers of the Earth?
Crust ( we live here )
Mantle
Inner core
outer core
Why is the outside of a wire made of rubber and the inside metal?
The outside is rubber because it is an insulator and the metal on the inside will conduct the electricity.
What is a producer?
a plant. It produces its own energy.
sound and light travel by...
Waves
What is weathering?
What is erosion?
Weathering is the break down of rock by wind, water and other forces into small pieces of broken rock called sediment.
Erosion is the transportation of that sediment.
At what temperature does water freeze?
32 degrees
How many days does it take the Earth to revolve around the sun?
How long does one rotation of the Earth take?
365
24 hours
What is a decomposer?
An organism that breaks down dead things into nutrients for soil.
vibrations
The Earths crust is broken up into different ____________ making it look like a jigsaw puzzle.
Plates.
Where will you probably find igneous rock?
near volcanoes
What part of a plant absorbs water?
roots
leaves
trunk
roots
What is a compost bin?
A compost bin is where you can put organic matter to be broken down by decomposers to make nutritious soil.
death
growth
birth
reproduction
birth
growth
reproduction
death
The air that surrounds the Earth is called the
Atmosphere.
Where is the majority of water on Earth?
Oceans
How do identify minerals? By their....
Properties
What do the arrows represent on a food web?
Energy transfer.
If there is an arrow from a rabbit and it points to a coyote, the coyote ate the rabbit and took his energy.
Why does the Earth have seasons?
The Earth has seasons because it is tilted 23.5 degrees.
A ____________ cleans dirty water.
filter.
What are the 4 types of precipitation?
rain
snow
sleet
hail
The word organic means?
something alive or was once alive.
true or false
The north side of a magnet will stick to the south side of another magnet.
true
Why do we have day and night.
We have day and night because the Earth is rotating meaning it is spinning. So at any given time half of the Earth is pointing towards the sun.
How can we change states of matter?
By adding or removing heat.