Instructions
We can't see the bottom of the deep ocean, but we can make a map of it! Boats send a special sound down into the water. This sound is called sonar. The sound hits the ocean floor and bounces back up like an echo. By listening to the echo, we can tell if the floor is deep or shallow, and we can draw a map!
Activity 1: Match the Words
Draw a line from the word on the left to what it does on the right.
| Sonar | The bottom of the ocean, with its mountains and hills. |
| Boat | Floats on the water and sends out the special sound. |
| Ocean Floor | The special sound that bounces back to make a map. |
Activity 2: Fill in the Missing Letters
These words help us talk about sonar. Can you find the missing vowel (a, e, i, o, u) to finish each word?
S _ NAR
B _ _ T
D E _ P
M _ P
Activity 3: Help the Sound Travel!
The sonar sound has to travel from the boat to the ocean floor and back again. Draw a line from the BOAT, down to the STAR, and back up to the BOAT without touching the friendly octopus!
⛴ BOAT ⛴
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
🐙
⭐
Activity 4: Draw the Ocean Floor Map!
The sonar map showed something exciting under the water! It found a very tall underwater mountain and some small fish swimming near it. Draw the tall mountain and the fish in the box below.
ANSWER KEY
Activity 1: Match the Words
- Sonar → The special sound that bounces back to make a map.
- Boat → Floats on the water and sends out the special sound.
- Ocean Floor → The bottom of the ocean, with its mountains and hills.
Activity 2: Fill in the Missing Letters
- S O NAR
- B O A T
- DE E P
- M A P
Activity 3: Help the Sound Travel!
The line should go from the boat, curve around the octopus, touch the star at the bottom, and then curve back up to the boat without crossing over the octopus.
Activity 4: Draw the Ocean Floor Map!
The drawing should include a large mountain shape rising from the bottom of the box, not going above the wavy water line. There should also be drawings of small fish in the water.