UD5 Toolkit
Feelings Wheel – Click to Name Your Emotion
Start with a core feeling (sad, mad, scared, joyful) and click to narrow down to more precise words (lonely, frustrated, anxious, proud).
Human Skeleton Anatomy Viewer - Online Interactive Bones
Bone Details
Hover or click on any bone in the diagram to view its name and description.
Click again to deselect.
Frequently Asked Questions
The adult human skeleton typically consists of 206 bones. However, this number can vary slightly due to sesamoid bones and individual differences. Newborn babies have around 270 bones, many of which fuse together during growth.
The femur (thigh bone) is the longest, largest, and strongest bone. It supports the body's weight during standing, walking, and running.
The stapes (stirrup bone) in the middle ear is the smallest bone. It measures only about 2.8 mm in length and helps transmit sound vibrations.
Bones are classified by shape into five main types: long bones (e.g., femur), short bones (e.g., carpals), flat bones (e.g., skull, sternum), irregular bones (e.g., vertebrae), and sesamoid bones (e.g., patella).
The skeleton provides support, protects vital organs, allows movement by serving as attachment points for muscles, produces blood cells in bone marrow, and stores minerals such as calcium and phosphorus.
When a bone breaks, the body forms a blood clot around the fracture, then a soft callus of cartilage, which later hardens into a bony callus. Over weeks to months, the bone remodels itself back to its original shape.
Interactive Geoboard – Stretch Rubber Bands on Pegs
A virtual geoboard where you can stretch virtual rubber bands around pegs to create polygons. Explore perimeter, area, and angles.
Interactive GraphQL Query Builder – Point & Click
Paste a GraphQL schema or introspection result and build queries by checking fields. See the resulting query string and copy it for use in your app.
CSS Grid Cheatsheet – Online Interactive Template Areas
Visual reference for CSS Grid properties. Click to see code snippets and visual demos.
Interactive Multiplication Chart – Online Highlight Patterns
Click cells to see patterns, highlight multiples. Visual way to learn multiplication. Print empty grid.
Real‑Time Sky Map – Online Interactive Tonight's Stars
Use browser compass and geolocation to show which planets and stars are overhead. Minimal, local only.
Playwright Test Skeleton - Online Script Boilerplate
Create a basic Playwright script with browser launch, page navigation, and screenshot. Start E2E testing instantly.
Historical Figures Timeline - Online Interactive Life Spans
See famous people's life spans on a draggable timeline. Compare who was alive at the same time. Educational fun.
Interactive Regex Cheatsheet - Online Quick Reference
An interactive reference for regular expression tokens. Click a token to see its explanation and example. Learn regex faster.
Interactive Color Wheel - Online Learn Color Theory
An interactive color wheel that teaches primary, secondary, tertiary colors, and harmonies. Pick and mix like a pro.
Virtual Frog Dissection - Online Biology Anatomy Lab
Step‑by‑step virtual frog dissection with labeled organs. No mess, ethical. Great for remote learning.
Rock Cycle Interactive Diagram - Online Geology Model
Click through the rock cycle to see how each rock type transforms into another. Animated arrows and descriptions.
Interactive Periodic Table - Online Chemistry Reference
An interactive periodic table of elements with detailed properties, electron configuration, and images. Excellent educational resource. All static data.