Grade 6
Beginner
About 10 min
Version 1
Awaiting review
Free
Living, once living or never alive?
Living things carry out seven life processes: they move, respire (release energy from food), sense and respond to their surroundings, grow, reproduce, excrete waste and need nutrition (food). A thing is living only if it can do all of these during its life. Some non-living things seem to show one or two: a car moves and burns fuel, and fire grows and needs air. Things that were once part of a living thing, like wood, a dry leaf or cotton, are not alive now, but they were.
What you will learn
- List the seven life processes.
- Decide whether something is living, once living or never alive.
- Explain why a seed is alive but fire is not.
Before you start
- None.
Materials
- Pictures or real examples: a goat, a mango tree, a mushroom, an earthworm, a bean seed, yoghurt bacteria, a stone, water, fire, a car, a robot toy, a wooden table, a dry leaf, a cotton shirt
Equipment
- Hand lens
Procedure
- Choose a card and check it against the life processes.
- Place each card in the living, once living or never alive group.