Comparing Lengths — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Of pencil, marker, ruler, the longest is the ruler.
Rulers are the longest of the three classroom tools.
2. Of ant, dog, horse, the biggest is the horse.
Horses are the largest of these three animals.
3. Of feather, book, brick, the heaviest is the brick.
Bricks are the heaviest item in the group.
4. Of mouse, cat, tiger, the smallest is the mouse.
Mice are the smallest of these three animals.
5. Of flower, bush, tree, the tallest is the tree.
Trees are the tallest plant of the three.
6. Of pebble, rock, boulder, the smallest is the pebble.
Pebbles are the smallest type of stone here.
7. Of crayon, pencil, marker, the shortest is the crayon.
Crayons are usually the shortest writing tool.
8. Of paper, book, brick, the lightest is the paper.
Paper weighs the least of the three items.
9. Of baby, child, adult, the tallest is the adult.
Adults are usually the tallest of the three.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Tallest plant
→ Tree
Tree
Heaviest item
→ Brick
Brick
Longest tool
→ Ruler
Ruler
Smallest animal
→ Mouse
Mouse
Each label describes the size that fits one object best.