Burrow Builders Worksheet Nature Explorer Series
Underground Cities
Reading Lab
Explorer:
Date:
Reading Passage
Lexile 575L - 700L
¶ 1
Under the dry dirt of the American grasslands, a busy city is hiding. This underground city is made of long, connected tunnels. These tunnels are called burrows . They are built by small, furry animals called prairie dogs.
¶ 2
Prairie dogs work together to dig these homes. A prairie dog town is very organized. It is divided into different neighborhoods. Inside each burrow, there are separate rooms for different needs. One room is a nursery for baby prairie dogs. Another room is a bedroom for sleeping. There is even a listening post near the exit. Here, a prairie dog can listen for danger before going outside.
¶ 3
Living in a large group helps prairie dogs stay safe. They have many predators , like hawks and coyotes. To protect the town, prairie dogs take turns acting as guards. A guard stands on a small dirt mound near the tunnel opening. If the guard sees an enemy, it makes a loud barking sound. This warning signal tells all the prairie dogs to jump back into their safe tunnels. Prairie dogs are amazing engineers. Their underground towns keep them safe, warm, and connected.
Main Idea Map
Central Main Idea (What is the passage mostly about?)
Supporting Detail 1
Supporting Detail 2
Supporting Detail 3
Underground Cities • Reading Comprehension & Main Idea Page 1 of 2
Nature Explorer Series
Text Detective Challenge
Evidence Check
1
Section A: Discovering the Core
1. Which of the following is the best main idea for the entire reading passage?
A Prairie dogs are fast runners that live in the grass.
B Prairie dogs build organized, safe underground towns.
C Hawks and coyotes are dangerous animals.
D Baby prairie dogs live in underground nurseries.
2. According to Paragraph 2, how is a prairie dog town like a real human city?
A It has paved roads and tall buildings.
B It has cars, buses, and train tracks.
C It is organized and split into neighborhoods.
D It is located above the dry dirt.
2
Section B: Gathering Traceable Evidence
3. Why do prairie dogs take turns acting as guards?
Found in ¶: ____
4. Describe at least two different rooms inside a prairie dog's burrow and explain what they are used for.
Found in ¶: ____
5. Why does the author call prairie dogs "amazing engineers"? Use details from the text to support your thinking.
My Schema + Clues
Underground Cities • Reading Comprehension & Main Idea Page 2 of 2
Burrow Builders Teacher Key Teacher Companion Resource
IEP Assessment Guide
Answer Key
Student Target: 8th Grader (3rd to 5th Transition)
Lexile Level: 575L - 700L (3rd Grade Entry)
Target Goal: Main Idea & Detail Extraction
IEP Goal Alignment
"To close the academic gap and meet grade-level expectations, the student (8th grader) will increase their reading level from a 3rd-grade baseline (575L-700L) to at least a 5th-grade level (830L-1010L) as measured by Lexile-aligned assessments, demonstrating progress in finding main ideas and locating traceable text-dependent evidence with 80% accuracy."
Answer Key & Evidence Citations
Main Idea Map expected responses:
• Main Idea: Prairie dogs are clever builders that construct highly organized, safe underground towns.
• Supporting Details: Split into bedrooms/nurseries (¶2); use guards to bark warnings (¶3); build dirt mounds around tunnel opening (¶3); they work together (¶2).
Item Question / Target Type Expected Answer Key Paragraph Q1 Central Main Idea (Multiple Choice) B — Prairie dogs build safe towns Passage Q2 Supporting details (Multiple Choice) C — Split into neighborhoods ¶ 2 Q3 Literal comprehension: Guards Watch for predators; bark to alert group. ¶ 3 Q4 Literal comprehension: Rooms Nurseries (babies), bedrooms, listening posts. ¶ 2 Q5 Inferential reasoning: Engineers Construct complex, functional, organized systems. ¶ 2 & 3
IEP Progress Monitoring Rubric
Mastery: 80%+
1. Main Idea Map Completes main idea and at least 2 relevant details.
Score: ____ / 4
2. Multiple Choice Correctly answers Q1 and Q2. No teacher prompting.
Score: ____ / 2
3. Evidence Citation Correctly cites paragraph 2 (Q4) and paragraph 3 (Q3).
Score: ____ / 2
4. Short Answers Provides specific text facts for Q3, Q4, and Q5.
Score: ____ / 3
Student Performance Tracker Calculate and record trial results below.
Points: _____ / 11
Abyssal Chimneys Worksheet Deep Sea Explorer Log
Sunless Chimneys
Abyssal Zone
Navigator:
Dive Date:
Reading Passage
Lexile 650L - 950L
¶ 1
Deep on the ocean floor, where the sun never shines, is a dark and freezing world. The water pressure is strong enough to crush a car. Yet, in this extreme place, amazing life thrives. The center of this active world is a hydrothermal vent . These vents are underwater cracks in the ocean crust. They are formed when icy seawater seeps down into the earth, gets superheated by magma, and then shoots back up. This hot water is filled with dark minerals. As a result, the vents look like tall chimneys blowing black smoke into the ocean.
¶ 2
Most food chains on Earth start with the sun. Plants use sunlight to make food. However, in the deep ocean, there is no light for photosynthesis. Instead, tiny microbes called bacteria are the base of this sunless food chain. These specialized microbes can turn the toxic chemicals from the hot vent water into food. This incredible process is called chemosynthesis .
¶ 3
Many strange creatures depend on these tiny microbes to survive. Giant tube worms, which can grow up to eight feet long, live in white tubes clustered around the chimneys. They do not have mouths or stomachs. Instead, they host billions of bacteria inside their bodies to feed them. Ghostly white crabs and blind shrimp crawl over the hot rocks, feeding on the thick mats of bacteria. Although these deep-sea chimneys seem like a hostile environment, they are actually bustling, warm oases of life in the cold deep.
Abyssal Fact Map
Central Main Idea (What is the main message of the entire text?)
Supporting Detail 1
Supporting Detail 2
Supporting Detail 3
Sunless Chimneys • Reading Comprehension & Main Idea Page 1 of 2
Deep Sea Explorer Log
Abyssal Detective Challenge
Evidence Check
1
Section A: Discovering the Core
1. Which sentence best sums up the main idea of this entire reading passage?
A Giant tube worms grow up to eight feet long in white tubes.
B Sunlight is the most important element for every food chain on Earth.
C Hydrothermal vents support a unique, thriving sunless ecosystem.
D The deep ocean floor is cold, dark, and has high pressure.
2. According to Paragraph 2, how does chemosynthesis differ from photosynthesis?
A It uses chemicals instead of sunlight to make food.
B It only occurs in warm, sunny environments on land.
Abyssal Chimneys Teacher Key Teacher Companion Resource
IEP Assessment Guide
Answer Key
Student Target: 8th Grader (3rd to 5th Transition)
Lexile Level: 650L - 950L (Midway Target)
Target Goal: Sub-Details & Sunless Ecosystems
IEP Goal Alignment
"To close the academic gap and meet grade-level expectations, the student (8th grader) will increase their reading level from a 3rd-grade baseline (575L-700L) to at least a 5th-grade level (830L-1010L) as measured by Lexile-aligned assessments, demonstrating intermediate mastery of main idea, key detail tracking, and citing paragraph citations with 80% accuracy."
Answer Key & Evidence Citations
Abyssal Fact Map expected responses:
• Main Idea: Hydrothermal vents create active, thriving ecosystems in the sunless, freezing depths of the ocean floor.
• Supporting Details: Vents superheat water filled with minerals (¶1); bacteria use chemicals to make food without sunlight (¶2); crabs, shrimp, and eight-foot tube worms survive here (¶3).
Item Question / Target Type Expected Answer Key Paragraph Q1 Central Main Idea (Multiple Choice) C — Vents support unique ecosystem Passage Q2 Supporting details (Multiple Choice) A — It uses chemicals instead of sun ¶ 2 Q3 Literal comprehension: Vent formation Icy seawater seeps down, gets heated by magma, shoots up. ¶ 1 Q4 Literal comprehension: Tube worms They host bacteria inside their bodies that make food for them. ¶ 3 Q5 Inferential reasoning: Oasis of life A place with warmth and life in the middle of a cold, empty desert. ¶ 3
IEP Progress Monitoring Rubric
Mastery: 80%+
1. Main Idea Map Identifies vent-ecosystem connection and 3 details.
Score: ____ / 4
2. Multiple Choice Answers Q1 and Q2 accurately without prompts.
Score: ____ / 2
3. Evidence Citation Accurately cites paragraph 1 (Q3) and paragraph 3 (Q4).
Score: ____ / 2
4. Short Answers Writes coherent, text-backed responses for Q3-Q5.
Score: ____ / 3
Crystal Cavern Worksheet Geological Expedition Log
The Cave of Giants
Subterranean Zone
Explorer Name:
Expedition Date:
Reading Passage
Lexile 830L - 1010L (Grade 5)
¶ 1
Deep below the Chihuahua Desert in Mexico, miners chasing lead and silver broke through a rock wall in the year 2000. What they discovered was a breathtaking, yet deadly, subterranean wonderland. This cavern is known as the Giant Crystal Cave, and it lies nearly one thousand feet below the Earth's surface. Inside, mammoth white crystals of gypsum stretch across the cavern like giant beams of light. Some of these crystals are over thirty-six feet long and weigh up to fifty-five tons. They are the largest natural crystals ever found on Earth, creating a scene that looks like it belongs on another planet.
¶ 2
The creation of these massive crystals required a rare set of geological conditions. For hundreds of thousands of years, the cave was flooded with mineral-rich water heated by a pool of magma deep below. The hot magma kept the cavern's temperature at a steady, scorching 122 degrees Fahrenheit. At this precise temperature, a mineral called anhydrite dissolved into the water, transforming into gypsum. Because the temperature remained perfectly stable for millennia, the gypsum molecules bonded together and grew continuously, molecule by molecule, without stopping.
¶ 3
While the cave is a marvel to look at, it is extremely hostile to human life. The temperature inside routinely reaches 122 degrees Fahrenheit, and the humidity climbs to over ninety percent. In these extreme conditions, sweat cannot evaporate from a person's skin, making it impossible for the body to cool itself. Without heavy protective suits filled with ice packs, a scientist would suffer severe heat stroke in less than ten minutes. Despite the danger, microbiologists have braved the cavern and discovered strange, dormant microbes trapped inside the crystals. These tiny organisms have survived for tens of thousands of years on a diet of iron and sulfur, proving that life finds a way to survive in the most extreme places on Earth.
Crystalline Concept Map
Central Main Idea (Summarize the main point of the passage)
Key Detail: Physical Features
Key Detail: Growth Conditions
Key Detail: Extremophile Life
The Cave of Giants • Reading Comprehension & Main Idea Page 1 of 2
Geological Expedition Log
Crystalline Assessment Challenge
Evidence Check
1
Section A: Core Analysis
1. Which of the following statements represents the central main idea of the entire text?
A Miners looking for lead and silver discovered the cave by accident in 2000.
Crystal Cavern Teacher Key Teacher Companion Resource
IEP Assessment Guide
Answer Key
Student Target: 8th Grader (3rd to 5th Transition)
Lexile Level: 830L - 1010L (5th Grade Mastery)
Target Goal: Grade Level Gap Closure
IEP Goal Alignment
"To close the academic gap and meet grade-level expectations, the student (8th grader) will increase their reading level from a 3rd-grade baseline (575L-700L) to at least a 5th-grade level (830L-1010L) as measured by Lexile-aligned assessments, demonstrating complete independence in identifying complex main ideas and citing precise evidence with 80% accuracy."
Answer Key & Evidence Citations
Crystalline Concept Map expected responses:
• Main Idea: The Giant Crystal Cave is a breathtaking but deadly underworld formed under precise, rare geological conditions.
• Key Details: Houses mammoth gypsum crystals over 36 feet long and 55 tons (¶1); formed over millennia by mineral water heated by magma at a stable 122°F (¶2); extreme heat/humidity require ice suits, but dormant microbes survive inside (¶3).
Item Question / Target Type Expected Answer Key Paragraph Q1 Central Main Idea (Multiple Choice) B — Giant Crystal Cave is magnificent yet hostile Passage Q2 Supporting details (Multiple Choice) B — A pool of hot magma deep underneath ¶ 2 Q3 Literal comprehension: Sweat High humidity (90%+) prevents sweat from evaporating off skin. ¶ 3 Q4 Literal comprehension: Crystal dimensions Crystals stretch over 36 feet long and weigh up to 55 tons. ¶ 1 Q5 Inferential reasoning: Extremophiles Microbes survived for tens of thousands of years on iron and sulfur alone. ¶ 3
IEP Progress Monitoring Rubric
Mastery: 80%+
1. Main Idea Map Completes main idea and at least 3 distinct details.
Score: ____ / 4
2. Multiple Choice Correctly answers Q1 and Q2. No prompting.
Score: ____ / 2
3. Evidence Citation Correctly cites paragraph 3 (Q3) and paragraph 1 (Q4).
Score: ____ / 2
4. Short Answers Writes specific text facts for Q3, Q4, and Q5.
Depth Explorer Math Worksheet Submarine Math Operations
Signed Rational Explorers
Rational Numbers
Explorer Name:
Date:
Explorer's Operation Chart
Adding & Subtracting Rules
Same Signs: Add the absolute values and keep the common sign.
Different Signs: Subtract the smaller from the larger, keep the sign of the larger value.
Example: \( -10.5 + 4.2 = -6.3 \)
Multiplying & Dividing Rules
Same Signs (+/+ or -/-): The result is always positive (+) .
Different Signs (+/- or -/+): The result is always negative (-) .
Example: \( -3 \times \left(-\frac{1}{2}\right) = +1.5 \)
Section A: Fluency Pilot Checks
PILOT CHECK #1 Decimal Add
\[ -12.4 + (-8.15) \]
Answer:
PILOT CHECK #2 Decimal Subtract
\[ 4.5 - 9.75 \]
Answer:
PILOT CHECK #3 Fraction Multiply
\[ -2 \frac{1}{2} \times \left(-\frac{3}{5}\right) \]
Answer:
PILOT CHECK #4 Decimal Divide
\[ -15.6 \div 3 \]
Answer:
Deep Sea Navigation Tip: Remember to locate positive integers pointing upwards (towards the surface) and negative numbers pointing downwards (towards the ocean bed). Draw models to double check your path!
Submarine Depth Operations • Signed Rational Numbers IEP Lesson Page 1 of 2
Submarine Math Operations
Real-World Depth Challenges
Real-World
B
Section B: Navigational Missions
MISSION #1: DEEPER DESCENT Addition
A research submarine is exploring an ocean trench at an elevation of \( -180.5 \) meters . To photograph a giant tube worm, it descends another \( 45.75 \) meters . Write an equation and solve to find the submarine's new depth.
Sketch
-180.5 ?
Workspace
Equation:
Final Depth:
MISSION #2: TEMPERATURE GAP Subtraction
The water temperature at the surface is \( 18.4^\circ\text{C} \) . Deep inside an oceanic trench, the temperature drops to \( -2.85^\circ\text{C} \) . Write an equation and solve to find the difference between these two temperatures.
Sketch
18.4 -2.85
Workspace
Depth Explorer Teacher Key Teacher Companion Resource
IEP Math Assessment Guide
Answer Key
Target Skill: Signed Rational Numbers
Domain Focus: One-Step Addition/Sub/Mult/Div
Assessment Target: IEP Goal Monitoring
IEP Goal Alignment
"Given a one-step real-world word problem or calculation involving addition, subtraction, multiplication, or division of signed rational numbers (fractions and decimals), the student will write an equation and solve with 80% accuracy across 3 consecutive trials."
Master Answer Key & Stepped Solutions
Section A: Computation Solutions
• PILOT #1: \( -12.4 + (-8.15) = \mathbf{-20.55} \) (Keep common sign, add absolute values)
• PILOT #2: \( 4.5 - 9.75 = \mathbf{-5.25} \) (Add the opposite: \( 4.5 + (-9.75) \))
• PILOT #3: \( -2 \frac{1}{2} \times \left(-\frac{3}{5}\right) = -\frac{5}{2} \times \left(-\frac{3}{5}\right) = \frac{15}{10} = \mathbf{1 \frac{1}{2}} \) or \( \mathbf{1.5} \) (Neg \(\times\) Neg = Pos)
• PILOT #4: \( -15.6 \div 3 = \mathbf{-5.2} \) (Neg \(\div\) Pos = Neg)
Mission Operation Type Target Equation Correct Final Answer #1: Descent Decimal Addition \( -180.5 + (-45.75) = x \) \( -226.25 \text{ meters} \) #2: Temp Decimal Subtraction \( 18.4 - (-2.85) = x \) or \( 18.4 + 2.85 \) \( 21.25^\circ\text{C} \) #3: Diver Fraction Multiplication \( -1 \frac{1}{2} \times 5 = x \) or \( -1.5 \times 5 \) \( -7 \frac{1}{2} \text{ m} \) or \( -7.5 \text{ m} \)
IEP Progress Monitoring Rubric
Mastery Target: 80%+
1. Operation Rules Recognizes when to add/subtract or apply negative sign products.
Score: ____ / 4
2. Computation Fluency Performs core decimal and fraction operations with accuracy.
Score: ____ / 4
3. Equation Translation Writes mathematical equation representations from word problems.
Score: ____ / 3
4. Modeling/Sketching Uses vertical scales or sketches to conceptualize directions.
Score: ____ / 3
Student Performance Tracker Calculate and record trial results below.
Points: _____ / 14
Percentage: ________ %
