Grade 3 - Plant Anatomy and Growth Quiz

Plant Biology

• Leaves mainly function in photosynthesis, enabling the conversion of sunlight into energy.
• Stems provide structural support, transporting nutrients and water between roots and leaves.
• Roots anchor the plant in the soil, absorb water and nutrients, and store energy.

Crops and Soil

• Crops such as corn and wheat typically grow in topsoil, which is nutrient-rich and supports plant growth.
• Examples of plants include stems, leaves, roots, but not examples like flowers which are reproductive structures.

Sugarcane

• The primary purpose of sugarcane is to produce sugar, which serves as a major energy source for many organisms.
• Sugarcane requires approximately 12 to 18 months of growth before it is ready for harvest.
• The stem of sugarcane consists of fibrous material that stores sugars and provides structural support.

Disasters

• A disaster refers to a sudden, catastrophic event that causes significant disruption and damage to life, property, and the environment.
• Natural disasters include phenomena such as earthquakes, hurricanes, and tsunamis.
• A tsunami is a large and often destructive wave caused by underwater earthquakes or volcanic eruptions.

Safety in Thunderstorms

• Safety rules during thunderstorms include staying indoors, avoiding electrical appliances, and not seeking shelter under trees to reduce the risk of injury.

Importance of Topsoil

• Topsoil serves as the uppermost layer of soil, rich in organic matter and nutrients, crucial for plant growth and agriculture.