SCIENCE CLASS IV EVAL 2

The leaves have tiny pores called________.

• stomata

• veins

• leaf blade

• starch

Cactus makes its food in ______.

• stem

• leaf

• root

• flower

The main source of energy on the earth is ___________.

• generator

• sun

• moon

• none of these

Which of the following is a parasitic plant?

• 
• 
• 
• 

The leaves of plants are green because.....

• they are formed from green coloured seeds.

• they absorb green liquid.

• of the presence of a green pigment called chlorophyll.

• of the presence of the network of veins.

Leaf is attached to the stem with the help of ________

• leaf blade

• stalk

• midrib

• none of these

When iodine is added to a starch solution, the color is changed to_______

• reddish brown

• green

• blue black

• yellow

Identify the picture.

• condensation

• photosynthesis

• weathering

• none of these

Three main things plants need to survive. 

• sunlight, oxygen, soil
• soil, carbon dioxide, sunlight 
• sunlight, air, soil 
• sunlight, air, water 

The source of energy plants use to make food

• photosynthesis 
• air 
• sunlight 
• soil