On earth we have __% of fresh water and ___% of salt water
3% and 97%
100
List four different types of land form we learn in class.
Mountain, valley, canyon, fall, erosion, plateau and plain
100
The thick, middle layer of earth.
mantle
200
The breaking up or wearing away of rock
weathering
200
What is plateau?
Plateaus are flat areas of land that are higher than the land around them.
200
A part of Earth's surface that has a certain shape and is formed naturally, such as valley, mountain and canyon.
Landform
200
A sudden movement of large sections of Earth's crust
Earthquake
300
What is Fossil?
The very old remains of a plant or animal.
300
The process of carrying weathered rock from one place to another.
erosion
300
Rock that forms when melted rock from inside Earth cools and hardens.
igneous rock
300
rock that forms when other rock is changed by heat and pressure
metamorphic rock
300
What is the must item when you do a science experiements?
1.hats
2.t-shirts
3.shorts
4.safty goggles
400
What is Humus?
The decayed remains of plants and animals
400
Tell us three steps of Fossil forming
1. a living thing dies and is buried under layers of sand and soil
2. over a long period of time, the sand and soil harden and turn into rock
3. as the crust moves, rock containing the fossil is slowly brought closer to the surface
400
Explain what mineral is. Give an example.
Mineral is a material that is found in nature and that has never been alive.
Diamonds, Aluminum, lead, silver and ect
400
What are two causes of rapid changes to Earth's surface?
1. Earthquake
2. Volcano eruption
400
Sticky soils that can hold a lot of water are mostly made of ____
clay
500
A glacier is a large mass of slow-moving ice. What does it do for Earth's slow change?
Glaciers carrying small rocks grind down large rocks. As glaciers move over some rocks, they pick up the rocks. When glaciers stops moving or melts, it drops the rocks.
500
Rocks are grouped according to how they are formed. there are three kinds of rock. What are they?
1. Igneous rock
2. Sedimentary rock
3. Metamorphic rock
500
give me the traits of Igneous Rock.
the texture is glassy, smooth, no grains
color is black
no layering
500
Tell us the steps of making in-class volcano.
1. Put a cup in the middle of volcano shaped clay
2. add two spoonfuls of baking soda
3. add about a spoonfuls of dishwash soap
4. add about 5 drops each of the red and yellow food coloring
5. add about one ounce of the vinegar into the cup
500
Why is topsoil likely to contain more humus than subsoil contains?
because the decayed remains of plants and animals tends to be on topsoil more than subsoil.