Authentic Lessons for 21st Century Learning

Plant Investigation

Plants depend on water and light to grow.

Gina Fisher, Patricia Turner | Published: May 17th, 2021 by Oklahoma Young Scholars/Javits

  • Grade Level Grade Level 2nd
  • Subject Subject Science
  • Course Course
  • Time Frame Time Frame 3-4 Class Periods
  • Duration More 45 minutes

Summary

in this lessons students explore and do an investigation to find out if plants need water or sunlight to grow. Students plan and conduct an experiment collaboratively to produce data to serve as the basis for evidence to answer the question. The lesson duration is 2 -4 days, plus more for sprouting of the seeds. Students have the opportunity later in the lesson modify and add new variations to their previous experiment.

Essential Question(s)

Do plants need water and light to grow?

Snapshot

Engage

Students will be shown one live and one dead plant. Students will record what they notice and what they wonder.

Explore

Students will practice growing plants virtually using Gizmos Growing Plants from Explorelearning.com.

Explain

Students will conduct a celery experiment which will help to explain how water travels through a plant.

Extend

Students can return to the Explorelearning website and can modify different variations from their previous experiments.

Evaluate

Students will draw a picture and explain what the dead plant might have needed to grow.

Materials

  • Parts of a Plant by Toni D (https://www.bookemon.com/flipread/384408#book/3)

  • Plants Need Water and Light Video (https://www.generationgenius.com/videolessons/plants-need-water-and-light-video-for-kids/)

  • Website: www.explorelearning.com

  • I Notice, I Wonder Graphic Organizer (Teacher will make on chart paper)

  • Chart Paper (for I Wonder responses)

  • Sticky Notes - (1 per student)

  • 5 plants ( 1 plant per table for a group of 4 students to explore the parts of a plant)

  • 4 paper cups for whole group ( label each pot: 1. Sunlight and No Water, 2. No Sunlight and No Water, 3. Water and No Sunlight, 4. Sunlight and Water.

  • 1 package of seeds (any will work)

  • 1 small bag of potting soil

  • red and blue food coloring

  • Celery observation Sheet (1 per student)

  • 5 cups for celery observation

  • 5 pairs of scissors

  • Blank paper (1 per student)

  • Gizmo Growing Plants Activity Sheet (1 per student)

Engage

15 Minute(s)

To open the lesson, the you will hold up 2 plants, 1 dead and 1 alive. In order to activate students’ prior knowledge ask students, “Why do you think my plant died?”  Then set up an “I Notice, I Wonder” graphic organizer on chart paper and display it in front of the class. Each student will then be given a sticky note to record their responses on and they will add their sticky notes to the “I Notice, I Wonder” chart paper. Go over some of the responses together as a class. These responses will help to guide the Explore activity.

2. Read aloud the book From Seed to Plant  by Gail Gibbons to your class.

After reading the book, have students Think-Pair-Share with their neighbor and talk about why they think the plant may have died?  What factors could have caused the plant to die? After a minute, have a few students share with the class what they discussed with their neighbors.

Explore

45 Minute(s)

Plant Experiments

Gizmos Growing Plants

  1. Have students log onto their computers and go to the website www.explorelearning.com.  Students can virtually explore plant growth using different factors and their outcomes. The teacher will need to model how to use the 

 

  1. Students will use the Gizmos Growing Plants activity sheet to document their findings. 

        

Hands-On Activity  (This activity will continue on for about a week)

Explain to students that they are going to design an experiment to explain what plants need to grow.  They will be using seeds in this experiment. 

Divide students into 4 groups.  Each group will get one cup with soil already added.  Each cup will be labeled as follows: 

  • Cup 1 - Sunlight and No Water

  • Cup 2 - Water and No Sunlight

  • Cup 3- Sunlight and Water  

  • Cup 4- No Sunlight and No Water

Ask students to discuss in their groups what all these cups have in common and ask why they think the soil is important?  The teacher will then explain that soil is very important because it gives the plant  nutrients.  Next, the teacher will let each group pick a seed to add to their cup.  The teacher will then model how to plant their seed.  The students then plant their seed in their cup.  After all four groups have their seeds planted, place cup 1 and cup 3  in an area in the room that receives sunlight, place cups 2 and 4 in a dark location in the room that does not receive sunlight.( For example, in a covered shelf or under a box).  Add a little bit of water to cups 2 and 3. After each pot is placed in their locations, ask students to Turn and Talk with their group about what they predict will happen to their plants.  Have a couple of groups share with the class what they discussed in their groups.  Last, give each student a plant journal.  They will record their plant observations daily for 1 week.  

Explain

45 Minute(s)

How Does a Plant Drink Water?

 Students will be able to explain how plants take in water.  They will also get to review parts of a plant which will help to explain how water travels through a plant. 

Read aloud  Parts of a Plant by Toni D. Then have students watch the video Plants Need Water and Light.

Extend

20 Minute(s)

Gizmos Growing Plants

Students return to  this site to virtually experiment with switching the variants to grow plants.

Students can come up with their own experiments.  Students can modify and add new variations to the previous experiments: Such as: Will plants grow if milk is used instead of water? What happens if you use hot water instead of cold? or other similar ideas.

Ask students what other things that could be used to help plants grow faster or bigger?  Students might suggest using compost or fertilizer.

Evaluate

10 Minute(s)

Bring out the dead and live plants from beginning of the lesson. Hand out a blank sheet of paper to each student.  Students will draw a picture of the dead plant and explain what this plant might have needed to grow.  They can also draw the living plant and write about what this plant has that keeps it alive.

Enrichment for Gifted Learners

Some alternate or extension activities that might be cognitively challenging for your gifted learners:

  • Student compare and contrast a nonfiction and fiction book about plants. Suggested texts: Plantzilla which tells a silly fiction story about a plant and A Seed is Sleepy has two layers of text and provides information about seeds and how they grow.

  • Students create a card sort for their class:

    cards could be about true and false facts about plants, things plants need and don’t need, or a sequence of cards showing the life cycle of a plant.

  • Students take pictures of plants on the school yard and make a photo field guide for the class.

Resources