What Makes Something Alive?

Active learning works well for this topic because young learners need to move beyond memorizing definitions to making real-world connections about what life is. By handling objects and discussing them with peers, students build conceptual clarity that abstract explanations often miss.

• 2nd Year
• Young Explorers: Investigating Our World
• 3 activities
• 20 min–40 min

Stations Rotation

⏱ 30 min·Small Groups

Living, Non-Living, Once-Living Sort

Provide students with a collection of real-world objects and images (e.g., a plant, a rock, a toy car, a feather, a piece of wood). Have them work in small groups to sort these items into three categories: living, non-living, and once-living, justifying their choices based on MRSGREN.

Prepare & details

Differentiate between the characteristics of living and non-living objects.

Facilitation Tip: During The Mystery Box, open the box slowly after students share predictions to build anticipation and focus their observations.

Setup: Tables/desks arranged in 4-6 distinct stations around room

Materials: Station instruction cards, Different materials per station, Rotation timer

• Remember
• Understand
• Apply
• Analyze
• Self-Management
• Relationship Skills

Stations Rotation

⏱ 20 min·Whole Class

Life Process Charades

Write down different life processes (e.g., growing, breathing, eating, moving, reproducing) on slips of paper. Students take turns acting out a process while their peers guess which MRSGREN characteristic is being demonstrated.

Prepare & details

Analyze the consequences if a living thing stopped performing essential life functions.

Facilitation Tip: For Is a Car Alive?, have students vote with thumbs up or down before pairing to encourage all voices to be heard.

Setup: Tables/desks arranged in 4-6 distinct stations around room

Materials: Station instruction cards, Different materials per station, Rotation timer

• Remember
• Understand
• Apply
• Analyze
• Self-Management
• Relationship Skills

Stations Rotation

⏱ 40 min·Small Groups

Observation Station: What's Alive?

Set up stations with magnifying glasses and various items like leaves, seeds, soil, small insects (in safe containers), and inanimate objects. Students rotate through stations, observing closely and recording characteristics that indicate life or non-life.

Prepare & details

Compare the apparent movement of non-living objects, like cars, to the purposeful movement of living things.

Facilitation Tip: In Gallery Walk, place the trickiest items like a feather or a mushroom early in the route to give students time to process them.

Setup: Tables/desks arranged in 4-6 distinct stations around room

Materials: Station instruction cards, Different materials per station, Rotation timer

• Remember
• Understand
• Apply
• Analyze
• Self-Management
• Relationship Skills

Teaching This Topic

Teachers should anchor this topic in student experiences by starting with objects they know, like toys or classroom items, before introducing trickier cases like seeds or fossils. Avoid explaining MRS GREN upfront; let students discover these patterns through guided exploration. Research shows that using compare-and-contrast tasks, like sorting objects into living/once-living/never-living, strengthens understanding more than lectures.

What to Expect

Successful learning looks like students confidently using the MRS GREN processes to explain why something is alive, once-living, or never alive. They should justify their reasoning with evidence from observations or discussions, not just guesses.

Watch Out for These Misconceptions

Common Misconception

During Is a Car Alive?, watch for students who assume movement means life. Redirect them by asking them to compare the car's movement with a cat's movement in terms of purpose and energy use.

What to Teach Instead

Use the Think-Pair-Share structure to have students list how the car and cat move differently, then share with the class to highlight that living things move to meet needs, while objects require external forces.

Common Misconception

During The Mystery Box, watch for students who dismiss seeds or eggs as not alive because they don't show immediate activity. Redirect them by opening the box to reveal a sprouting seed or chick, then ask how the object was 'waiting' for the right conditions.

What to Teach Instead

Guide students to observe the seed or egg's structure and potential for change. Ask them to imagine the object in a new environment and describe what they think would happen next.

Assessment Ideas

Exit Ticket

After The Mystery Box, provide students with three cards showing a frog, a plastic bottle, and a wooden pencil. Ask them to write on the back of each card whether it is living, non-living, or once-living, and one reason for their choice.

Discussion Prompt

After Is a Car Alive?, pose the question: 'What would happen if a plant stopped taking in sunlight?' Facilitate a class discussion, guiding students to connect this to the plant's ability to grow and survive, linking it to the definition of living things.

Quick Check

During Gallery Walk, ask students to point to an object and state if it is living, non-living, or once-living. Prompt them to justify their classification by referring to a specific life process or lack thereof.

Extensions & Scaffolding

• Challenge: Ask students to design a new object that appears alive but is not, and explain which MRS GREN processes it mimics or misses.
• Scaffolding: Provide sentence starters for explanations, such as 'A seed is alive because it can _____ when conditions are right.'
• Deeper: Have students research how one life process (like excretion) works in a plant versus an animal, and present their findings to the class.