SCIENCE LT2

Formation of Soil

100

What is soil made from?
a. Plastic
b. Rocks and decaying plants
c. Metal
d. Water

b. Rocks and decaying plants

200

How long does it take for soil to form?
a. A few days
b. A few weeks
c. Thousands of years
d. One month

c. Thousands of years

300

Soil formation begins with the breaking of:
a. Wood
b. Plastic
c. Rocks
d. Trees  

c. Rocks

400

Which natural agent does not help in soil formation?
a. Water
b. Air
c. Sunlight
d. Soap

d. Soap

500

Which process helps in forming soil over time?
a. Melting
b. Erosion
c. Weathering
d. Boiling

c. Weathering

Layers of Soil

100

Which is the topmost layer?
a. Bedrock
b. Topsoil
c. Subsoil
d. Mantle

b. Topsoil

200

Which layer is made of partly weathered rocks and clay?
a. Topsoil
b. Subsoil
c. Bedrock
d. Mantle

b. Subsoil

300

Which layer of soil is solid rock?

Bedrock

400

Roots of most plants are found in:
a. Subsoil
b. Bedrock
c. Topsoil
d. Gravel

c. Topsoil

500

Subsoil is usually:
a. Sandy and dry
b. Rich in humus
c. Clay-like and compact
d. Made of grass

c. Clay-like and compact

Uses of Soil

100

Soil is important for:
a. Flying
b. Growing plants
c. Driving
d. Swimming

b. Growing plants

200

What is made using clay soil?
a. Paper
b. Bricks and pots
c. Toys
d. Books

b. Bricks and pots

300

Which of these is not a use of soil?
a. Farming
b. Cooking
c. Pottery
d. Building

b. Cooking

400

Soil helps in:
a. Food production
b. Fuel burning
c. Water freezing
d. Cloud formation

a. Food production

500

Soil is part of the:
a. Sky
b. Earth's surface
c. Ocean
d. Moon

b. Earth's surface

Formation of Shadows

100

What causes a shadow to form?

Light being blocked

200

Which object makes a shadow?
a. Air
b. Wood
c. Water
d. Light

b. Wood

300

Which object is transparent?
a. Glass
b. Stone
c. Wood
d. Clay

a. Glass

400

A shadow always forms on the ______ side of the light source.

Opposite

500

Shadows can only form when:

Light is blocked. 

Shape and Size of Shadows

100

The size of the shadow changes with the:
a. Wind
b. Temperature
c. Distance from light source
d. Weight of the object

c. Distance from light source

200

A shadow becomes longer when:
a. The object is near the light
b. The object is far from the light
c. There’s no light
d. It is midnight

a. The object is near the light

300

If an object is far from the light, its shadow is:

Smaller

400

The shape of a shadow depends on the:
a. Color of object
b. Shape of the object
c. Temperature
d. Time of day

b. Shape of the object

500

The closer the object to the light source, the shadow is:

Longer