P3 Unit 20 Rocks

P3 Unit 20 Rocks

Science textbook at page 100-107

Rocks are everywhere

A rock is natural solid materials. It is made up of grains of one or more natural substances called minerals

There are many different type of rocks everywhere

• A. Rock on Hills

• What is the characteristic of rocks on hills based on this picture?

B. Rocks on beaches

• In beaches we can find rocks,

• What is the characteristic of rocks on beaches ?

C. Rocks near rivers and streams

See the size and the color of rocks based on this picture!

D. Rocks in fields

Multiple Choice

Based on this picture, which place that we can find this rock?

• on hills

• on beaches

• river and strams

• in fields

Classifying rocks

• The properties of a rock that we can observe are color and texture

• Rocks come in different colors, we can classify rocks according to their colors

We can describe the texture of a rock by talking about the size, shape and pattern

• We can classify rocks according to the size of their grains

• 
  

Shape of grains

• 
  

Pattern of grains

Multiple Choice

Based on this picture, this rocks classify in ....

• color

• texture

• shape

• patttern

Multiple Select

Look at this picture carefully, this rock are examples of

• coarse grains

• fine grains

• jagged

• smooth and rounded

Uses of rocks

• Bricks to build houses

• glass to make window panes

• cement to make sidewalks

• porcelain to make plates and bowls

• pebbles to decorate places

• clay to make flower pots

Multiple Select

Based on this picture, the use of clay is ............

• make window panel

• make flower pots

• decorate places