Comparing Lengths — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Sam has a worm, snake, and rope. Snake is longer than worm. Rope is longer than snake. Longest?
A) Rope
B) Snake
C) Worm
D) Same
Rope is longest because it beats both snake and worm.
2. A book is heavier than a pen. A brick is heavier than the book. Which is the lightest?
A) Book
B) Pen
C) Brick
D) Same
Pen weighs less than book, so pen is lightest.
3. Tree is taller than bush. Bush is taller than flower. Which is the shortest of the three plants?
A) Tree
B) Bush
C) Flower
D) Same
Flower is shortest since bush and tree are both taller.
4. Ant is smaller than mouse. Mouse is smaller than dog. Which animal is the biggest of all three?
A) Ant
B) Mouse
C) Same
D) Dog
Dog is biggest because mouse and ant are smaller.
Part B: Fill in the Blank
Write the correct answer on each line.
1. If a pencil is longer than a crayon, the crayon is shorter.
If pencil is longer, crayon must be shorter.
2. If a brick is heavier than a book, the book is lighter.
If brick is heavier, book must be lighter.
3. If a tree is taller than a bush, the bush is shorter.
If tree is taller, bush must be shorter.
4. If a horse is bigger than a dog, the dog is smaller.
If horse is bigger, dog must be smaller.
5. If a rope is longer than a string, the string is shorter.
If rope is longer, string must be shorter.