GRADE 3 -REVISION QUIZ

If a plant’s roots are damaged and cannot absorb water properly, what is most likely to happen?

• The plant will grow taller quickly

• The leaves will prepare more food
  

• The plant will wilt and may die

• The flowers will bloom early

A student covered the leaves of a plant with black paper for a few days. What would most likely happen?

• The plant will produce more flowers
  

• The plant will not be able to make food properly

• The roots will grow faster

• The stem will become thicker

Why must the root system and shoot system work together for a plant to survive?

• Because both grow above the ground

• Because roots make food and shoots store it
  
  

• Because roots absorb water and shoots make food

• Because shoots hold the plant in the soil

A plant is placed in a cupboard without sunlight but is watered regularly. What will most likely happen?

• It will grow healthy leaves
  

• It will survive because of water

• It will not be able to make food and will weaken

• It will produce more seeds

Why are leaves called the “food factory” of the plant?

• A. They store all the food
  
  
  

• B. They prepare food using sunlight, water, and carbon dioxide

• C. They absorb minerals from the soil

• D. They protect the plant from insects

During autumn, many trees shed their leaves. Why is this helpful to the plant?

• A. It helps the plant make more food
  
  
  

• B. It reduces water loss and prepares the plant for seasonal changes

• C. It helps roots grow faster

• D. It increases the number of flowers

If stomata did not open properly, which process would be directly affected?

• A. Absorption of water from soil
  

• 
  B. Exchange of gases
  

• C. Storage of food in roots
  

• D. Growth of flowers

Why is compost added to soil?

• A. To change the color of soil
  

• 
  B. To increase soil temperature
  

• C. To add nutrients and help plants grow
  

• D. To remove insects from plants

If chlorophyll is absent in a leaf, what would most likely happen?

• A. The leaf will be greener
  

• B. The leaf cannot capture sunlight properly
  

• C. The roots will stop growing
  

• D. The stem will become woody

A plant kept in polluted air has its stomata blocked. What will happen first?

• A. It cannot exchange gases properly
  

• B. It will absorb more water
  

• C. It will produce more fruits
  

• D. It will grow taller