Deep Ocean Expedition Work Packet
5th Grade Skills Mastery • Mission Unit 1
Deep Ocean Expedition Packet
Page 1 of 4 • Reading
Explorer Name:
Date:
Score:
Informational Text: The Hadal Frontier
Grade 5 Science & Literacy
Key Terms: Hadal Zone: Oceanic trenches deeper than 20,000 ft • Piezolytes: Pressure-protecting cell molecules • Chemosynthesis: Producing food from minerals
[¶ 1] Miles beneath the ocean's surface lies the Hadal Zone, a world of deep oceanic trenches plunging to depths over 36,000 feet. In this abyssal realm, sunlight completely disappears, creating perpetual darkness. The water temperature hovers near freezing, and hydrostatic pressure surpasses 1,000 atmospheres—exerting a crushing force equivalent to the weight of nearly fifty commercial airplanes resting upon a single human being.
[¶ 2] For generations, scientists hypothesized that these extreme trenches were completely barren. However, sophisticated autonomous submersibles equipped with pressure-resistant cameras have revealed thriving ecosystems. Organisms such as the Mariana snailfish and giant amphipods have evolved remarkable physiological adaptations. Rather than brittle, calcified skeletons that would shatter under severe pressure, they possess flexible cartilaginous frameworks and specialized chemical compounds called piezolytes that shield cellular proteins from collapsing.
[¶ 3] Because photosynthesis cannot occur in total darkness, trench food webs rely on chemosynthesis. Near hydrothermal vents, scalding mineral plumes erupt from the seafloor. Specialized bacteria synthesize sulfur compounds directly into organic nutrients, establishing a food chain independent of sunlight. Investigating these frontiers demands precision engineering, titanium alloy hulls, and accurate mathematical modeling.
Text-Dependent Questions & Evidence
1. [Refer to ¶ 2] Based on the text, what is the primary role of piezolytes?
A Reinforcing titanium hulls on deep-sea submersibles
B Protecting cellular proteins from collapsing under pressure
C Generating sunlight for deep ocean photosynthesis
D Producing scalding mineral plumes from seafloor vents
2. [Refer to ¶ 3] How does energy enter the Hadal Zone food web in the absence of sunlight?
A Through shallow phytoplankton drifting into trenches
B Through solar panels mounted on autonomous submersibles
C Through bacteria performing chemosynthesis with sulfur compounds
D Through freezing water temperatures converting to heat energy
3. Structural Adaptations [¶ 2]: Explain two adaptations that allow Hadal Zone organisms to survive extreme hydrostatic pressure.
Adaptation 1: First, organisms possess which prevents shattering because
Adaptation 2: Second, they utilize to keep proteins from
4. Central Idea: What is the author's primary central message regarding deep ocean ecosystems and exploration?
Although the Hadal Zone is characterized by
scientific exploration reveals that life thrives through
Deep Ocean Expedition • Grade 5 Integrated Work Packet • Module 1 Reading Comprehension
5th Grade Skills Mastery • Mission Unit 2
Submersible Engineering Log
Page 2 of 4 • Writing
Lead Engineer: ____________________________________ Mission Date: ______________
Naval Engineering Proposal Prompt
As chief engineer of the Nautilus V exploration pod, draft a formal informative engineering proposal (2 paragraphs) explaining the vessel's primary research mission in the Hadal Zone, the specialized materials and pressure-shielding systems engineered to withstand 1,000 atmospheres, and the scientific significance of your mission.
Target Science Vocabulary:
titanium alloy hull hydrostatic pressure piezolyte mimicry chemosynthetic vent
Formal Academic Transitions:
To begin with... Specifically... Furthermore... Consequently...
Step 1: Pre-Writing Engineering Blueprint
1. Vessel Mission & Objective
The Nautilus V will descend into the Hadal Trench to investigate:
2. Structural Pressure Shields
To resist 1,000 atmospheres, our hull is engineered with:
3. Scientific Breakthrough
Data gathered from this mission will help oceanographers learn:
Step 2: Final Engineering Proposal Draft
Criteria: Clear Topic Sentences • Technical Evidence • Formal Tone
Deep Ocean Expedition • Grade 5 Integrated Work Packet • Module 2 Engineering Writing Task
5th Grade Skills Mastery • Mission Unit 3
Submersible Systems Multiplication
Page 3 of 4 • Math (3×3)
Explorer Name: ____________________________________ Date: ______________
Standard Algorithm Protocol: (1) Multiply ones • (2) Multiply tens (add 0 placeholder) • (3) Multiply hundreds (add 00) • (4) Sum partial products.
Part A: Computational Algorithms (Show All Partial Products)
Problem 1 348 × 216
Product:
Problem 2 572 × 384
Product:
Problem 3 (Caution: zero in tens place) 629 × 405
Product:
Problem 4 814 × 736
Product:
Part B: Deep Sea Applied Word Problems
5. Sonar Range: A research submarine sends out 468 acoustic pulses each hour. If the expedition lasts for 325 continuous hours, how many total pulses does the crew transmit?
Total Pulses:
6. Ration Logistics: The underwater research lab orders 248 cargo crates. Each crate holds 175 sealed nutrient packs. What is the total number of nutrient packs delivered?
Total Packs:
Deep Ocean Expedition • Grade 5 Integrated Work Packet • Module 3 3-Digit by 3-Digit Multiplication
5th Grade Skills Mastery • Mission Unit 4
Station Architecture: Area & Volume
Page 4 of 4 • Geometry
Explorer Name: ____________________________________ Date: ______________
Area: \( A = l \times w \) | \( w = A \div l \) | \( l = A \div w \)
|
Volume: \( V = l \times w \times h \) | \( w = V \div (l \times h) \)
Part 1: Finding Missing Length or Width in Rectangular Decks
1. Hydroponics Bay
Length = 24 m Area = 432 m² w = ?
Formula: \( w = \text{Area} \div \text{Length} \)
Width:
m
2. Control Center
l = ? Area = 756 ft² w = 18 ft
Formula: \( l = \text{Area} \div \text{Width} \)
Length:
ft
3. Docking Platform
Length = 45 cm Area = 1,125 cm² w = ?
Formula: \( w = \text{Area} \div \text{Length} \)
Width:
cm
Part 2: Finding Missing Dimensions in Rectangular Pods (Volume)
4. Oxygen Storage Pod
Volume = 840 m³
Length = 14 m
Height = 6 m
Width (w) = ?
Step: \( 14 \times 6 = 84 \) → \( 840 \div 84 \)
Width:
m
5. Ballast Water Tank
Volume = 2,160 ft³
Width = 12 ft
Height = 10 ft
Length (l) = ?
Step: \( 12 \times 10 = 120 \) → \( 2{,}160 \div 120 \)
Length:
ft
6. Deep Core Vault
Volume = 3,600 cm³
Length = 25 cm
Height = 16 cm
Width (w) = ?
Step: \( 25 \times 16 = 400 \) → \( 3{,}600 \div 400 \)
Width:
cm
Deep Ocean Expedition • Grade 5 Integrated Work Packet • Module 4 Area & Volume Dimensions
