Lesson 2 of 10

🌿 Living & Non-Living Things

🎯 Grades 3–5 ⏱ ~25 min 💚 Beginner

What You'll Learn

  • List the 7 characteristics of living things (MRS GREN)
  • Sort objects into living and non-living categories
  • Understand why viruses and fire are tricky edge cases
Quick Check

1. What does MRS GREN stand for?

AMovement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition
BMass, Radius, Speed, Gravity, Rotation, Energy, Nucleus
CMitosis, Roots, Stem, Growth, Reaction, Enzymes, Nerves

2. A rock grows crystals over millions of years. Is a rock living?

AYes, because it grows
BNo — it does not show all 7 characteristics of life
CScientists are not sure

3. Which characteristic means "getting rid of waste"?

ARespiration
BNutrition
CExcretion
← What Do Scientists Do? Plants & What They Need →