Lesson 1 of 9
So many kinds
Show on a big screenTwo leaves grow on one mango tree. Are they the same size?
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Step 1 of 4
- Leaf 1, from a mango branch.
- Leaf 2 — a little longer.
- Leaf 3 — longer still.
- Same tree. Different lengths.
The rule
No. Two leaves on one mango tree differ a little in size.
Variation means small differences between living things of one kind.
Leaves on one tree differ in length. Puppies born together, called a litter, differ in colour.
Example
The lab has eight leaves from one mango tree. The shortest leaf is 14 cm. The longest leaf is 21 cm. So the longest is 21 − 14 = 7 cm longer.
Try the lab to finish this lesson.