Lesson Worksheet: Plant Behavior Science • 4th Grade

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In this worksheet, we will practice investigating how plants change their behavior in response to their environment.

Q1:

Plant roots usually grow downward, in the same direction as the force of gravity.

What is this type of tropism called?

Q2:

Fill in the blanks: Plant stems usually grow because of .

Q3:

When a lamp was put above a plant, the plant grew upward.

The lamp was then moved to the side of the plant.

Fill in the blank: The plant is .

Q4:

Plants respond to light sources by changing the direction that they grow in.

What is the name of this type of tropism?

Q5:

Fill in the blank: The response of a plant to a change in its environment is called .

Q6:

When some plants come into contact with other objects, they respond by wrapping around them or holding onto them.

What is this type of tropism called?

Q7:

Fill in the blanks: A is a change in an organism’s environment that causes the organism to .

Q8:

Mia and Jacob are talking about how living organisms respond to their environment. Who is correct?

Q9:

Fill in the blank: Plants need sunlight and water to survive. These are examples of that can cause plants to change the way they grow.

Q10:

A plant’s environment can often change, and this may cause a plant to change its behavior.

What do we call this change in behavior?

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