Grade 3 Grouping Living Things worksheet
from Gradelings · Name: ______________________
How to explain it
- Scientists sort living things into groups by their features.
- Mammals have fur or hair and feed their babies milk. Birds have feathers. Fish have fins and gills.
- Biodiversity means the variety of life in a place.
Example: A bat has fur and feeds its babies milk. Which group is it in? Fur or hair and milk for babies are mammal features. Flying does not make it a bird. Answer: mammal
Question 1
Which animal has a backbone?
- 🐌snail
- 🪱worm
- 🦌deer
🦌 deer
Hint: A backbone is a row of bones down the middle of the back. Deer have one, but worms and snails don't.
Question 2
How do fish breathe underwater?
🐟- with their fins
- with gills
- with their tails
with gills
Hint: Gills take oxygen out of the water. Fins and tails help fish swim and steer.
Question 3
Does it have a backbone? Tap an item, then tap its basket.
Sort into: 🦴 has a backbone · 🪱 no backbone
- 🪱worm
- 🐸frog
- 🐟salmon
- 🕷️spider
- 🐙octopus
- 🦌deer
🦴 has a backbone: frog, salmon, deer · 🪱 no backbone: worm, spider, octopus
Hint: Fish, frogs, snakes, birds and mammals all have a backbone. Worms, snails, insects, spiders and crabs do not.
Question 4
A mushroom is not a plant or an animal. It belongs to a group called…
🍄- fungi
- insects
- reptiles
fungi
Hint: Mushrooms are fungi. They can't make food from sunlight, so they get food from dead leaves and wood.
Question 5
A forest has many kinds of trees, birds, insects and mushrooms. It has…
🌲- no biodiversity
- high biodiversity
- low biodiversity
high biodiversity
Hint: Lots of different kinds of living things in one place means high biodiversity.
Question 6
A whale lives in the ocean, but it breathes air and feeds its babies milk. It is a…
🐋- fish
- mammal
- reptile
- bird
mammal
Hint: Breathing air and feeding babies milk are mammal features. Whales even have a few hairs!
Question 7
Which living thing is a plant?
- 🪲beetle
- 🌿fern
- 🍄mushroom
🌿 fern
Hint: Plants have leaves and make their own food from sunlight. A mushroom is a fungus, not a plant.
Question 8
Mammals, birds, fish, reptiles and amphibians all have a…
🦴- hard shell
- pair of wings
- set of gills
- backbone
backbone
Hint: These five groups are all animals with a backbone.
Question 9
A spider has 8 legs. Is it an insect?
🕷️- Yes, every small crawling animal is an insect
- No, insects have 6 legs
- Yes, insects have 8 legs
No, insects have 6 legs
Hint: Count the legs! Insects have 6. Spiders have 8, so they are in a different group.
Question 10
Scientists sort living things into groups by looking at their…
🔍- names in ABC order
- features, like body parts and leaves
- favourite places to visit
features, like body parts and leaves
Hint: Living things with the same features go together, like all the animals with feathers.
Answer key
- 1. 🦌 deer
- 2. with gills
- 3. 🦴 has a backbone: frog, salmon, deer · 🪱 no backbone: worm, spider, octopus
- 4. fungi
- 5. high biodiversity
- 6. mammal
- 7. 🌿 fern
- 8. backbone
- 9. No, insects have 6 legs
- 10. features, like body parts and leaves
Want more than 10 questions?
In Gradelings the questions change every time and adjust to your child, with hints and kind feedback.