Humans and the Earth: Our Impact

Young learners build lasting understanding through concrete, hands-on experiences that make abstract ideas visible. When students see, touch, and discuss the effects of human actions on their environment, they connect cause and effect in ways that stick. Active learning turns everyday moments into teachable evidence about how small choices add up to big changes.

• Kindergarten
• Science
• 4 activities
• 15 min–20 min

Learning Objectives

1. Identify at least three ways human actions can change the local environment.
2. Explain how littering can harm plants and animals in a specific local habitat.
3. Compare a clean environment with one that has been impacted by litter or pollution.
4. Predict the effect of removing many trees from a local forest area.

Inquiry Circle

⏱ 20 min·Small Groups

Inquiry Circle: Before and After Water

Give small groups two jars of water. One jar stays clean; into the other, students add a pinch of dirt, a drop of food coloring as a stand-in for dye or soap, and a small scrap of paper. Students observe both jars, describe the difference, and discuss what changed the water and whether they would want to drink either one.

Prepare & details

Analyze how our choices change the world around us.

Facilitation Tip: During Collaborative Investigation: Before and After Water, have students use pipettes to slowly add water to one side of a clear tray, then watch how it spreads and changes the paper ‘land’ on that side.

Setup: Groups at tables with access to source materials

Materials: Source material collection, Inquiry cycle worksheet, Question generation protocol, Findings presentation template

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

Gallery Walk

⏱ 20 min·Pairs

Gallery Walk: Impact Evidence

Post six large photos showing human impact: litter on a beach, a clear-cut hillside, a clean park, a thriving garden, a storm drain blocked with trash, and a healthy stream. Students walk with sticky dots and place a green dot on photos where humans helped the environment and a red dot where humans caused harm.

Prepare & details

Explain how littering harms animals and plants.

Facilitation Tip: During Gallery Walk: Impact Evidence, place real artifacts like plastic wrappers, a broken branch, or an empty water bottle at different stations and ask students to describe what they see and what might have happened.

Setup: Wall space or tables arranged around room perimeter

Materials: Large paper/poster boards, Markers, Sticky notes for feedback

• Understand
• Apply
• Analyze
• Create
• Relationship Skills
• Social Awareness

Think-Pair-Share

⏱ 15 min·Pairs

Think-Pair-Share: What Changed Here?

Show two side-by-side aerial photos: a healthy forest and the same area after logging. Students share with a partner what they notice is missing and which animals or plants might be affected by that change. The class shares out and lists the losses together on a chart.

Prepare & details

Predict what happens to a forest when many trees are cut down.

Facilitation Tip: During Think-Pair-Share: What Changed Here?, project a simple photo of a forest with a few visible pieces of litter and ask students to turn and talk about what they notice before sharing with the class.

Setup: Standard classroom seating; students turn to a neighbor

Materials: Discussion prompt (projected or printed), Optional: recording sheet for pairs

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Role Play

⏱ 20 min·Individual

Role Play: The Animal Reporter

Students choose an animal and briefly describe, from that animal's perspective, what happened to their home when people left trash or cut down trees. Sentence frames guide students: 'My name is ___. I live in ___. When people ___, my home ___.' Each student shares one or two sentences.

Prepare & details

Analyze how our choices change the world around us.

Facilitation Tip: During Role Play: The Animal Reporter, give each animal reporter a simple prop like a leaf, shell, or pinecone to hold while speaking to help them stay in character and focus on their habitat need.

Setup: Open space or rearranged desks for scenario staging

Materials: Character cards with backstory and goals, Scenario briefing sheet

• Apply
• Analyze
• Evaluate
• Social Awareness
• Self-Awareness

Teaching This Topic

Teachers know that young children learn best when they connect ideas to their own bodies and voices. Avoid abstract lectures about pollution or conservation. Instead, let students see immediate, visible changes in their classroom environment after small actions. Focus on the language of impact—use verbs like harm, help, change, and clean so students build a clear vocabulary for cause and effect. Research shows that when students act out scenarios, they remember the lesson longer than when they only observe.

What to Expect

Successful learning looks like students confidently pointing to pictures or props and naming whether an action helps or harms the Earth. You will hear them using words like trash, clean, water, and home when they explain their choices. Their drawings and role-play show that they recognize humans impact plants and animals, even in small ways.

Watch Out for These Misconceptions

Common Misconception

During Collaborative Investigation: Before and After Water, watch for students who say one person’s small action does not matter.

What to Teach Instead

Start with the classroom floor visibly clean. Ask each student to drop one paper ‘trash’ item on the floor, then pause and ask if the room looks different. Together, pick up all the paper and ask how many hands it took to make a big change.

Common Misconception

During Role Play: The Animal Reporter, watch for students who believe animals can simply move to a new home if theirs is harmed.

What to Teach Instead

Before the role play, show pictures of animals like koalas or polar bears that rely on one type of plant or ice. During the role play, hand each reporter a specific prop tied to their habitat and ask them to explain why they cannot just ‘go somewhere else.’

Assessment Ideas

Exit Ticket

After the Gallery Walk: Impact Evidence, give each student a drawing of a park. Ask them to draw one way a person could help the park and one way a person could hurt the park. They should also draw one animal that lives in the park and label its home.

Discussion Prompt

After Collaborative Investigation: Before and After Water, show students two pictures: one of a clean stream and one of a stream with trash in it. Ask: ‘What is different between these two pictures? Which stream would be better for the fish and the plants? Why?’

Quick Check

During Think-Pair-Share: What Changed Here?, hold up pictures of different actions (e.g., planting a flower, throwing trash on the ground, watering a plant, cutting down a tree). Ask students to give a thumbs up if the action helps the environment and a thumbs down if it harms the environment. Ask them to explain why for one or two examples.

Extensions & Scaffolding

• Challenge: Ask early finishers to add a second action to their drawing from the exit ticket that shows how the animal could survive if its home was harmed.
• Scaffolding: For students who struggle, provide sentence starters on index cards like “The [animal] needs…” or “This trash makes the water…” during the Think-Pair-Share.
• Deeper exploration: Set up a long-term observation of a small terrarium or garden area. Have students predict, record, and discuss changes over several weeks related to human impact.

Key Vocabulary

litter	Trash or garbage that is left in a place where it does not belong, like on the ground or in a stream.
environment	The natural world around us, including the air, water, land, plants, and animals.
impact	A strong effect or influence that one thing has on another, like how our actions affect the environment.
habitat	The natural home or place where a plant or animal lives, like a forest for squirrels or a pond for frogs.