Structure Sketcher Note-taking Sheet Field Guide: External Structures
Topic: Elephant Survival Adaptations
Explorer:
Date:
As you watch the video, record the External Structures (the parts on the outside) and their Functions (how they help the elephant survive).
Structure (Part)
Function (Job)
Trunk
Tusks
Ears
Wrinkly Skin
Tail
Legs
Feet
Structure & Function Connection
"How do internal structures (like blood vessels or nerves) work with external structures to help the elephant survive?"
Elephant Explorer Slides Survival Structures
Uncovering the Secrets of Elephant Adaptations
Daily Spark
Smooth Balloon
Crumpled Paper
If you poured water on both, which one would hold more water in its "cracks"? Why?
Field Report: Elephant Secrets
1
Watch the video carefully.
2
Focus on External Structures (body parts on the outside).
3
Match each structure to its Function (how it helps survival).
Get your Note-taking Sheet Ready!
Embedded media
External Structures of Animals – Elephants (3:18)
The "Multi-Tool"
Trunk & Tusks
The video says the trunk is actually a nose . How is an elephant's nose different from yours?
Why are tusks called modified teeth ? What kind of food do they help gather?
Keeping Cool
Giant Ears
Large ears have a lot of surface area .
How do the internal blood vessels work with the flapping of the ears to keep the elephant cool?
Bonus: Touch your own ears. Are they warm?
Surprising Sensors
Feet & Skin
How can an elephant "hear" with its feet ?
Remember our balloon and paper warm-up. Why is wrinkly skin better than smooth skin for survival?
Ground Vibrations
Your Mission
Design a "Super-Structure"
Pick any animal.
Draw a brand new structure for it.
Explain how this structure helps it survive!
Ex: A rabbit with giant cooling ears or a turtle with reflective armor!
Gallery Walk
Leave your work on your desk. Walk quietly around the room. Look for one structure that you think is the most clever!
No Touching
Kind Feedback
Silent Observation
Super-Structure Design Activity Super-Structure Design
BIO-ENGINEERING LAB REPORT #001
Engineer:
Date:
Your Mission
Choose an animal. Design one new External Structure that would help it survive in a difficult environment. Draw your animal and label its "super-structure."
Sketchpad & Blueprints
Draw your animal and structure here...
Animal Selection
Super-Structure Name
Survival Function
How does this part help the animal survive, grow, or protect itself?
Reminder: Don't forget to draw a label line to your new structure in the box above!
Elephant Anatomy Anchor Chart Elephant External Structures
"Form Follows Function in the Wild"
The Trunk
Actually a nose ! Used for breathing, smelling, and shoveling food/water.
Tusks
Modified teeth used for digging, protection, and showing dominance.
Giant Ears
Thermoregulation
Large surface area and blood vessels help release body heat.
Wrinkly Skin
Cracks trap moisture to reduce water loss and keep the skin cool.
Tail
Hairy tip works like a fly swatter to whisk away biting insects.
Sensitive Feet
Pads detect ground vibrations to communicate with other herds.
External
Parts we can see on the outside of the body.
Internal
Systems on the inside (nerves, blood vessels, bones) that help parts work!
Jungle Journals Reflection Prompts Jungle Journal
End of Mission Reflection
PROMPT 1
The Power of Texture
Think back to our balloon and crumpled paper warm-up. Explain how an elephant's wrinkly skin is an adaptation that helps it survive in a hot, dry environment.
PROMPT 2
The Hidden Connection
An elephant's feet are external structures , but they rely on internal structures like nerves to detect vibrations. Why is this internal/external teamwork important for survival?
Big Idea Reflection
If an elephant moved to a freezing cold, snowy environment, which of its external structures might need to change ? How would they change to help it survive?
Survival Structures • NGSS 4-LS1-1 • Unit 4: Life Systems
Elephant Explorer Teacher Guide Teacher Facilitation Guide
LESSON: SURVIVAL STRUCTURES
Standard
NGSS 4-LS1-1
Internal and external structures function to support survival, growth, and behavior.
Learning Objective
Students will identify external structures of elephants and explain how their specific functions support survival in their environment.
Answer Key: Structure & Function Chart
Structure Function(s) Trunk Actually a nose; used for smelling, breathing, and moving food/water into mouth. Tusks Modified teeth; used to dig, gather food, protection, and social dominance. Ears Hearing, communication, and cooling (surface area releases heat). Wrinkly Skin Traps moisture in cracks to reduce water loss and maintain cooling. Tail Hairy tip used to swish away biting insects. Legs Support massive weight; allow for quiet movement; help flee or charge. Feet Pads detect ground vibrations for long-distance communication.
Video Discussion Cues
[0:27] The Trunk:
"If your nose could work like a hand, what is the first thing you would try to pick up?"
[1:15] Cooling Ears:
"Why do elephants have bigger ears than humans? Connect this to where they live."
[2:40] Vibration Detection:
"Have you ever felt a loud truck drive by? That's vibration! Why is feeling sound useful if you're a heavy animal?"
Common Misconceptions
Tusks are horns: Clarify that tusks are made of ivory (dentine) and are specialized teeth.Ears are just for hearing: Emphasize thermoregulation (cooling).Trunks are like straws: Elephants suck water *into* the trunk but then spray it into their mouths; they don't drink *through* the trunk like a straw.
Differentiation
Support: Provide a word bank for the T-chart functions. Focus on just 3 structures (Trunk, Ears, Tusks).Extension: Ask students to research an *internal* structure (like the elephant's large heart or complex brain) and how it supports their massive body. 
