Deep Dive Student Worksheet
MISSION LOG • PAGE 1
Oceanography Field Log
DEEP DIVE DETECTIVES
Video Companion to Bill Nye: Ocean Exploration
NAME:
DATE:
CLASS:
Mission Briefing
Welcome, oceanographers! As we voyage through the episode, answer these questions in chronological order. Keep your eyes sharp and your ears open for key data to complete your log.
Part 1: Chronological Video Log
01
Approximately what percentage of the Earth's surface is covered by water?
My observation:
02
What happens to the water pressure as you go deeper and deeper into the ocean? Explain why.
03
How does salt get into the ocean originally? (Hint: Think about rivers and rocks)
04
Why doesn't the salt evaporate with the water when the sun heats up the ocean?
05
Does sound travel faster through water or through air?
06
What scientific acronym/word stands for Sound Navigation and Ranging? What is it used to map?
07
What is Alvin, and what kind of research work does it perform?
08
Complete the sentence: "Ocean currents act like giant _________ running inside the ocean."
DEEP DEEP OCEANOGRAPHY UNIT RETURN COMPLETED LOG TO BASE CAMP
MISSION LOG • PAGE 2
FIELD RESEARCH CONTINUE-LOG
Part 1 & Part 2
09
What are three natural factors that drive global ocean currents?
10
What do we call the superheated geysers on the ocean floor that spew mineral-rich water?
11
Unlike land ecosystems, deep-sea hydrothermal ecosystems run without sunlight. What is the process of generating energy from chemicals called?
12
What tiny, drifting organisms form the absolute base of the entire marine food web?
13
How do Earth's oceans help regulate global climates and temperatures?
Part 2: Ocean Depth Zones Diagram
Write the name of the correct zone next to its depth range using the terms below:
Sunlight Zone Twilight Zone Midnight Zone
A. 0 to 200 meters:
B. 200 to 1,000 meters:
C. Below 1,000 meters:
Sunlight Area
Submarine Logged
A. _______________________
B. _______________________
C. _______________________
Part 3: Oceanographer Reflection
Bill Nye states that we know more about the surface of the Moon than we do about the deep ocean floor. Based on what you watched about pressure, light, and technology, why do you think deep ocean exploration remains so difficult for scientists?
DEEP DEEP OCEANOGRAPHY UNIT RETURN COMPLETED LOG TO BASE CAMP
Deep Dive Answer Key
TEACHER KEY • PAGE 1
Oceanography Field Log • Teacher Guide
DEEP DIVE DETECTIVES
Answer Key & Video Reference for Bill Nye: Ocean Exploration
Master Answer Key For Educator Grading & Review
Grading Directions
Below are chronological answers with suggested grading criteria. Answers in bold emerald indicate the direct recall and literal facts expected from the video.
Part 1: Chronological Video Log
01
Approximately what percentage of the Earth's surface is covered by water? ~01:10
71% (Accept any answer between 70% and 72%)
02
What happens to the water pressure as you go deeper and deeper into the ocean? Explain why. ~02:40
Water pressure increases. This happens because of the weight of all the water above pushing down due to gravity.
03
How does salt get into the ocean originally? ~04:15
Rainwater runs over rocks and dissolves minerals (salts), which rivers then carry to the ocean.
04
Why doesn't the salt evaporate with the water when the sun heats up the ocean? ~05:30
Only pure water evaporates into a gas. The heavy salt minerals are left behind in the liquid.
05
Does sound travel faster through water or through air? ~07:05
Sound travels faster through water (about 4 times faster!).
06
What scientific acronym/word stands for Sound Navigation and Ranging? What is it used to map? ~08:20
SONAR. It is used to map the depth and topography of the ocean floor.
07
What is Alvin, and what kind of research work does it perform? ~10:50
Alvin is a deep-sea human-occupied submersible used to explore the ocean floor and study life near vents.
08
Complete the sentence: "Ocean currents act like giant..." ~13:15
rivers
DEEP DEEP OCEANOGRAPHY UNIT • ANSWER KEY CONFIDENTIAL
TEACHER KEY • PAGE 2
FIELD RESEARCH CONTINUE-LOG
Part 1 & Part 2
09
What are three natural factors that drive global ocean currents? ~14:40
1. Wind
2. Temperature
3. Salinity (Salt)
10
What do we call the superheated geysers on the ocean floor that spew mineral-rich water? ~17:00
Hydrothermal vents (also accept "black smokers")
11
Unlike land ecosystems, deep-sea hydrothermal ecosystems run without sunlight. What is the process of generating energy from chemicals called? ~18:30
