Rocks A
What type of rock comes from a cooled lava?
Igneous Rock
What type of rock is formed by years and years of sediment compacted together and hardened?
Sedimentary Rock
What type of rock is formed with great heat and pressure?
Metamorphic rock
Bamboo and candle wax is an example of Natural materials. True or False? Why?
False. Because candle wax is a man-made material.
What natural materials are glasses made of?
sand
diamond
False. It's Geologist.
True or False. Why?
False. It's magma.
What does rigid materials mean?
difficult or impossible to bend; not changing.
What does stretching means?
It is holding one end of an object and pulling the other end.
"I am hard, strong and smooth rock. I can have many colours. I am used for for building and decorations. What kind of rock I am?"
marble rock
"I am hard and smooth. I can be used for floor or roof tiles. What kind of rock I am?"
Slate
Where do boulders come from?
mountain
What is the property of an object to return to its original shape?
Elastic
What does flexible materials mean?
can be bent, usually without breaking
What do you call the test that describes the hardness and softness of rocks?
Scratch test
In the formation of Rocks, what is bigger than stones/rocks?
Boulder
What do we call an open pit mine that is used to get rocks and minerals from the ground?
quarry
Why are some materials can be bent, twisted, squashed or stretched while other cannot?
Because they are made of different materials.
How can we change the shape of materials?
by bending, stretching, twisting and squashing
The remains of plants and animals trapped inlayers of rock. What are these?
fossils
What happens to large rocks when it goes down the soil?
They break into smaller pieces
How will you know if your rock is dull or shiny?
Place/Shine a light to it.
Why do we have to change the shape of materials?
So we it can be used in different ways.
Is it possible to bend an iron nail?
Yes. Using a hammer.