Science Chapter 8&9 (Rocks&Changes to our environment)

What type of this rock? …

• smooth

• shiny

• dull

I am the smooth and shiny. what rock I am? ...

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What are the similarities between the two stones? They are …

• Smooth

• shiny

• dull

Which is the sandstone? ...

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which the following of rocks extract from the mines?

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Some rock are heavy. We need   ________________________________  to extract them.

• Machines

• Tools

• Knife

 

How we do change our environment? Except …

• We build hospital

• We destroy the house

• We build farm

 

 

 

People build ________________________ to travel to the other side of a river.

• Roads

• Bridges

• School

What is the effect of cutting down too many trees?...

• animal will not be effect

• Only animals have no food

• many animals will lose their habitats

How are these changes helpful to us? …

• Help us move from one place to another

• Give us food

• Give us shelter