Bug Detectives Slides Top Secret Case File Grade 5 Science
BUG DETECTIVES
How can we spot a REAL insect? Let's crack the code!
Clue 1: Body Parts Clue 2: Legs & Armor
CLUE 1
The 3-Part Body
Every insect has exactly 3 rooms!
1
🦟
2
3
1. HEAD Eyes & Brain
2. THORAX Legs attach
3. ABDOMEN Tummy & Tail
Rule of Three No matter how big or small, an insect always has these three parts lined up!
Touch your head. That is Part 1!
Your chest is like Part 2 (Thorax)!
Your stomach is like Part 3 (Abdomen)!
Unit: Insect Basics Slide 2 of 6
CLUE 2
Armor & Senses
Hard outside, smart feelers!
EXOSKELETON
Insects have bones on the OUTSIDE!
It is like wearing a tough suit of metal armor. It protects them from danger and keeps them dry.
🛡️ Tap your fingernail. That's a tiny bit of armor!
ANTENNAE
They use two long FEELERS to navigate!
Insects do not have noses like us. They use antennae to smell food, feel around, and even hear!
📶 Like TV antennas picking up signals in the air!
Unit: Insect Basics Slide 3 of 6
CLUE 3
Six Jointed Legs
Three on each side, built to bend!
The Leg Count
6 TOTAL LEGS
3 + 3 PER SIDE
🦵 JOINTED means they can bend, just like your knees and elbows!
Rule of Six
Insects always have 6 legs. If it has 8 legs, or 100 legs, it is NOT an insect!
DETECTIVE MISSION:
Look at a spider. Count its legs. It has 8 legs ! That means spiders are sneaky suspects, but they are NOT insects!
Unit: Insect Basics Slide 4 of 6
CHALLENGE
Insect or NOT an Insect?
Use your detective skills to decide!
INSECT
🐜
ANT
NOT!
🕷️
SPIDER
INSECT
🐞
LADYBUG
NOT!
🐌
SNAIL
Unit: Insect Basics Slide 5 of 6
MISSION TIME Ready to Investigate
Open Your Field Journal!
Now it is your turn to become a certified Bug Detective! We are going to label the parts, circle the armor, and solve the mysteries in our worksheets.
✏️ Get your pencil and your sorting cards ready. Let's work together!
Get ready for action! Slide 6 of 6
Bug Detectives Field Journal Official Case Document
BUG DETECTIVE JOURNAL
Detective:
Date:
1
The 3-Part Body Case
Label the parts of our mystery suspect!
🔎 WORD BANK
HEAD Has eyes & feelers
THORAX Middle part (legs attach)
ABDOMEN Tail part (tummy)
A
🦟
B
C
PART A is the:
__________________
PART B is the:
__________________
PART C is the:
__________________
💡
Detective Secret: All insects have exactly 3 body parts . If a bug has 2 parts (like a spider), it is not an insect!
Bug Detective Field Files Page 1 of 2
Official Case Document
ARMOR & LEGS EVIDENCE
2
The Suit of Armor
Insects have a hard outer shell called an exoskeleton .
Where are an insect's bones?
A On the INSIDE of their body
B On the OUTSIDE of their body
3
Draw the 6 Legs!
Draw 3 jointed legs on each side of the middle thorax part!
DRAWING CASE CANVAS
Head 📶
THORAX Draw legs here!
Abdomen
🦵 Bending Joint Hint: Draw lines that bend in the middle like a knee!
🧠
Quick Case Summary:
Insects have exactly 6 legs , 3 body parts , and a hard exoskeleton ! You are officially ready to sort suspects!
Bug Detective Field Files Page 2 of 2
Bug Detectives Sorting Activity Tactical Sorting Field Board
INSECT SORTING SHOWDOWN
Detective:
Date:
1
Your Case Instructions
Cut out the Suspect Cards on the next page. Glue them into their correct matching box below!
🐜
REALS INSECTS
Must have 3 parts & 6 legs!
Paste Insect Cards Here
🕷️
NOT INSECTS
They do NOT fit the rules!
Paste Non-Insect Cards Here
📝
Review your slides or journal clues before pasting! Double check leg counts!
Bug Detective Showdown Page 1 of 2
Cut-Out Suspect Sheet
THE BUG SUSPECTS
Carefully cut along the dotted lines. Read the clues to find their identity!
🐜
SUSPECT A: ANT
Has 3 body rooms.
Has 6 jointed legs.
Clue A
🕷️
SUSPECT B: SPIDER
Has 2 body rooms.
Has 8 hairy legs.
Clue B
🦋
SUSPECT C: BUTTERFLY
Has 3 body rooms.
Has 6 legs & wings.
Clue C
🪱
SUSPECT D: WORM
Has 1 long soft body.
Has 0 legs.
Clue D
🐞
SUSPECT E: LADYBUG
Has 3 body rooms.
Has 6 jointed legs.
Clue E
🦀
SUSPECT F: CRAB
Has 10 hard legs.
Has hard outside shell.
Clue F
Bug Detective Showdown Page 2 of 2
Bug Detectives Teacher Guide Teacher Facilitation Blueprint
BUG DETECTIVES TEACHER GUIDE
Grade 5th Grade
Focus Low Literacy
Duration 45-60 Mins
Format Slides & Paper
LEARNING OBJECTIVE
Students will visually identify and describe the 3 core requirements of an insect (3 body parts, exoskeleton, 6 jointed legs) and sort insect vs. non-insect specimens with 100% accuracy.
LOW-LITERACY SCAFFOLDING STRATEGIES
Physical Modeling: Have students tap their heads (Part 1), chests (Part 2), and stomachs (Part 3) to mimic the insect's 3-part body structure.
Choral Repetition: Repeat terms like "Thorax" and "Exoskeleton" aloud as a class. Accentuate the rhythm (e.g., "EX-O-SKEL-E-TON").
Visual Coding: Keep color codes matches (Emerald for Insects, Red for non-insects) to help students build automatic associations.
STEP-BY-STEP TEACHER SCRIPTS
Slide 1-2
Introduce Case (10 mins)
"Welcome, Detectives! Today, we have a mystery to solve: is a spider an insect? Grab your magnifying glasses! Let's say the body parts together: HEAD, THORAX, and ABDOMEN. Tap your chest—that's your thorax!"
Slide 3-4
Unveil the Clues (15 mins)
"Touch your fingernail. Hard right? Insects have their entire skeleton on the outside like armor. We call it an exoskeleton! Next, check the legs: they must have exactly SIX jointed legs. Point to your knees—they bend! Insect legs bend too."
Slide 5-6
Interactive Sorting Prep (5 mins)
"Let's practice together with Slide 5. Why is a spider not an insect? Correct, it has 8 legs! It has violated our Detective rules! Now, open your Field Journals."
Bug Detective Facilitation Resources Page 1 of 2
Activity Grading & Answers
ASSESSMENT & ANSWER KEY
FIELD JOURNAL ANSWER KEY
Page 1: 3-Part Body Labels
Part A: HEAD
Part B: THORAX
Part C: ABDOMEN
Page 2: Armor & Senses Multiple Choice
B Correct Answer: B (On the OUTSIDE of their body)
Page 2: Drawing Rubric
Verify students have drawn exactly 6 legs attached directly to the middle segment (Thorax). If they drew legs on the abdomen or head, guide them back to the Thorax rule.
SORTING SHOWDOWN ANSWER KEY