MirachRavaia

Shh… Mama Earth doesn’t know we’re measuring her tallest green kids! Grab some cardboard, a coin, and a string, and help us estimate the height of a tree—no climbing required. Celebrate Earth Day with a little DIY science and a lot of fun! ✂️ Build Your Clinometer You’ll need: cardboard, protractor, ruler, pencil, string, tape, small weight (like a coin). Quick steps: Trace your protractor onto cardboard Mark a few angles (0°, 45°, 90° is enough!) Cut it out and poke a hole at the center Tie string through the hole and attach a coin ✅ When you hold it up, the string should hang straight down EXAMPLE WITH ADDED INSTRUCTIONS PLUS PHOTOGRAPHIC AIDS [DEVIATION] 🌳 Measure Your Tree Stand back and measure your distance from the tree Measure your eye height (ground → your eyes) Find your angle Hold the clinometer at eye level Look at the top of the tree Read the angle where the string points 🧮 Quick & Easy Math Step-by-step: Subtract your measured angle from 90° Example: