Survival Needs

The video tutorial explains the basic needs of plants: air, water, and sunlight. It sets up an experiment with four plants to demonstrate what happens when one of these needs is not met. The control plant receives all its needs, while the others lack sunlight, water, or carbon dioxide. After 10 days, observations show that plants without one of these essentials stop growing, highlighting the importance of each element for plant survival.

What are the three basic needs of plants to survive?

• Air, water, and soil

• Air, water, and sunlight

• Sunlight, soil, and air

• Water, sunlight, and nutrients

In the experiment, what was the purpose of the control plant?

• To test the effects of no air

• To serve as a baseline with all needs met

• To test the effects of no sunlight

• To test the effects of no water

What was predicted to happen to the plant that received no sunlight?

• It would grow faster

• It would stop growing

• It would change color

• It would grow taller

What was the condition of the plant that did not receive water after 10 days?

• It had more flowers

• It had grown taller

• It had wilted leaves and dry soil

• It was healthy and green

Why did the plant with grease-coated leaves stop growing?

• It couldn't absorb water

• It couldn't absorb sunlight

• It couldn't absorb nutrients

• It couldn't absorb carbon dioxide