Rocks
What are rocks are made out of?
Tiny bits of minerals
What do we use the mineral graphite for?
pencil led
Is sand good for farming?
No, it does not hold water well.
What causes weathering? There are 2 things.
Wind and Water
Why is a diamond able to scratch chalk?
It is harder than chalk
What rock comes from volcanos?
Igneous
What test would you do to find out how hard a mineral is?
scratch test
Is clay the best soil for farming?
No, but it is better than sand.
Does weathering happen quickly or over time?
Over time
Why would talc (hardness of 1) not be a good idea for jewelry?
It is too soft and will break.
What rock is made from dirt, sand, and rock layers that are squeezed over time?
Sedimentary
What test would you do to find the true color of a mineral?
Streak test
What is the best soil for farming?
Give an example or erosion or weathering that happen at school or home.
Answers will vary.
If something has a hardness of 8 and I hit it will a hammer, will it break?
Yes, hardness does not mean it is tough enough to not break with a lot of force.
What rocks change inside earth with high heat and pressure?
Metamorphic
What test would you do to describe the feel of a mineral?
Texture test
Why is it important that soil holds water well when thinking about using it for planting?
Plants get their water through their roots in the soil.
First rocks break. Then rain and wind carry the pieces away.
This is erosion.
If a mineral is white will it always be white on a streak test?
No, sometimes the streak will be a different color than how it looks.
What is one way we use rocks inside our homes?
Building, countertops, in the garden, etc.
What is one of the hardest minerals that are commonly used in rings?
Diamonds
If you are planting and you have the option between light color soil or dark colored soil which should you choose and why?
The dark colored soil because it will hold water better and is probably loam.
A class is observing a hill over the school year. They find that the hill is smaller at the end of the year than the beginning. How might this have happened?
Either by weathering or erosion over the school year. Every time it rails, some of the dirt and mud are washed away.
What is a scientist who studies rocks?
Geologist