Review Plants-1

I placed this plant near the window. After two hours, I examined it. What would you expect to happen to the leaves during that time?

  1. The leaves will turn towards the light.

    Yes. The leaves will move and turn so that their surface gets as much light as possible. The following is a time lapse video, showing what happened with the plant.

  2. The leaves will turn away from the light.

    No. The leaves need light, so they turn to catch as much light as possible.
  3. The leaves will turn a darker green.

    No. While more light could eventually cause the leaves to grow and darken, the process would not happen in a couple of hours.
  4. The leaves will not change.

    No. Plants are adapted to turn their leaves towards a light source.

Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.


SC.3.L.14.2 Investigate and describe how plants respond to stimuli (heat, light, gravity), such as the way plant stems grow toward light and their roots grow downward in response to gravity.
Review Plants-1 practice

SC.5.L.17.1 Compare and contrast adaptations displayed by animals and plants that enable them to survive in different environments such as life cycles variations, animal behaviors and physical characteristics.
Flowers video, ClosedCaptions
Onion Crystals video
A Walk in the Park video
Nature Watching video
Calling a Woodpecker video
Selective Smelling video
Seed Search video, ClosedCaptions
Review Adaptation-5 practice
Review Adaptation-6 practice
Review Plants-1 practice
Review Adaptation-2 practice
Review Adaptation-3 practice
Review Adaptation-4 practice


UT.8.IV.4.d Investigate and report the response of various organisms to changes in energy (e.g., plant response to light, human response to motion, sound, light, insects’ response to changes in light intensity).
Making a Screamer video, free, Updated
Review Plants-1 practice

UT.3.II.2.b Predict the effects of changes in the environment (e.g., temperature, light, moisture) on a living organism.

UT.3.V.1.b Observe and report how sunlight affects plant growth.


2-LS2-1 Plan and conduct an investigation to determine if plants need sunlight and water to grow.

3-LS3-1 Analyze and interpret data to provide evidence that plants and animals have traits inherited from parents and that variation of these traits exists in a group of similar organisms.
Who Evolved on First? text page, free, checked
Review Cells-4 practice

K-ESS2-2 Construct an argument supported by evidence for how plants and animals (including humans) can change the environment to meet their needs.
Seed Search video, ClosedCaptions
Review Plants-1 practice

4-LS1-1 Construct an argument that plants and animals have internal and external structures that function to support survival, growth, behavior, and reproduction.
Feathers video
Heartless Plants video, ClosedCaptions
Nature Watching video
Calling a Woodpecker video
Pumpkin Guts video, free, ClosedCaptions
Seed Search video, ClosedCaptions
Orange Slices video, ClosedCaptions
Bird Bones video, free
How Does a Butterfly Fly? text page, free
Thoughts on an Exoskeleton text page, free
Eye Shine text page
Review Plants-3 practice
Review Plants-1 practice
Review Plants-5 practice
Review Plants-6 practice
Review Plants-7 practice
Review Plants-8 practice

MS-LS1-5 Construct a scientific explanation based on evidence for how environmental and genetic factors influence the growth of organisms.