Exploratorium
Pinhole Magnifier
Using a pinhole in an index card, learners of light find that it can be used as a magnifier.
Exploratorium
Pupil
Give pupils a magnifier, a mirror, and a flashlight so that they can examine their own pupils. As they shine a light on their eyes, the light is shone on how this structure dilates and contracts to control how much is allowed into the...
Forest Foundation
Nature's Treasure Chest
Renewable, recyclable, and biodegradable. As part of their study of the forest ecosystem, class members read "Nature's Treasure Chest" about the many products made from trees and then craft their own recycled paper.
NOAA
Biological Oceanographic Investigations – What's in That Cake?
Have you ever tried to find hidden items in a picture when you don't know what you are looking for or how many things are hidden? A lesson applies that same concept to sampling the deep sea habitats. Participants must first create a...
National Park Service
It's Not Easy Being Grizz
Grizzly bears can be up to 600 pounds and require a great deal of food, especially to survive hibernation. Comprised of multiple games, the third lesson of five only uses one setup. Pupils run around a large field, sorting and collecting...
Science 4 Inquiry
Musical Vibes with Palm Pipes
Ancient people used musical pipes as early as the third millennium BCE. Young scientists explore the workings of musical pipes to better understand the relationship with frequency, length of pipe, and sound waves. They determine the...
Curated OER
As Easy As Pi!
Middle schoolers conduct a scavenger hunt to find circular objects at home, then use the objects to find the pattern of pi.
US Department of Energy
Magnets on a Stick: A Magnetic Force Demonstration Device
Why do some magnets attract while others repel? Scholars use clearly labeled permanent magnets to explore the attractive question. They compare the behavior of like versus opposite poles to find the answer.
Curated OER
Impact Craters Activity
Lunar explorers perform an experiment to understand the size of the craters on the surface of the moon. They layer flour, laundry detergent, and cocoa powder in a pan to model the lunar surface. They drop marbles from different heights...
Mathematics Vision Project
Circles: A Geometric Perspective
Circles are the foundation of many geometric concepts and extensions - a point that is thoroughly driven home in this extensive unit. Fundamental properties of circles are investigated (including sector area, angle measure, and...
Illustrative Mathematics
Seven Circles III
A basic set-up leads to a surprisingly complex analysis in this variation on the question of surrounding a central circle with a ring of touching circles. Useful for putting trigonometric functions in a physical context, as well as...
Curated OER
Scale/Ratio
Investigate the use of ratios in scale drawings. Learners scale objects up or down using ratios then find the actual size of something using ratios. They apply their knowledge of ratios as they make their own telescopes in science...
Curated OER
Magnetic Levitation
A thorough investigation of magnetic levitation; this activity has four parts. First, physical scientists play with a wooden dowel and three disc magnets to review polarity and repelling action. Then they experiment with...
Curated OER
Pi Day: The Other Math Holiday!
Happy Pi Day! This collection of games, experiments, and activities leads participants through an exploration of the many aspects and attributes of that mysterious quantity, pi. Activities range from using statistical...
Exploratorium
Vocal Visualizer
Make sound visible with an activity that provides directions for how to build a vocal visualizer meant to create light patterns. Making noise into the visualizer causes a mirror to vibrate, reflecting a laser beam, and creating...
Curated OER
A Model Solar System
If Earth is modeled by a grapefruit, what planet could be represented by a golf ball? This activity uses everyday and not-so-everyday objects to create a model of the Solar System.
It's About Time
The History and Scale of the Solar System
Take scientists beyond our earthly reach and into the solar system. Pupils create a model of the solar system and discuss strengths and weaknesses of their model. They calculate distances in light years, discuss the nebular theory, and...
Curated OER
Discovering Density
If you have a set of six various metal rods, you can use this lab activity to challenge science students to calculate their densities. They will use a triple beam balance to measure the mass and the micrometer and ruler determine the...
Exploratorium
Eddy Currents
Make electromagnetic eddy currents evident with this demonstration. You will need to gather a few materials from the local hardware store and a strong neodymium magnet, but the visual value is well worthwhile.
Curated OER
Tennis Balls in a Can
Make your classroom interesting by teaching or assessing through tasks. Deepen the understanding of Geometry and motivate young mathematicians. The task uses investigation with tennis balls and their container to prompt learners to...
Illustrative Mathematics
Coins in a Circular Pattern
What starts as a basic question of division and remainders quickly turns abstract in this question of related ratios and radii. The class works to surround a central coin with coins of the same and different values, then develops a...
Willow Tree
Perimeter of Common Geometric Figures
Help learners understand that perimeter and circumference are one in the same. Learners apply their skills to determine the perimeter/circumference of triangles, rectangles, and circles. They then use the same strategy to find the...
Mathematics Assessment Project
Glasses
Clink, clink! Young mathematicians investigate drinking glasses composed of known solids (cones, cylinders, and hemispheres). Next, they determine the volumes of these glasses.
Mathematics Vision Project
Module 6: Trigonometric Functions
Create trigonometric functions from circles. The first lesson of the module begins by finding coordinates along a circular path created by a Ferris Wheel. As the lessons progress, pupils graph trigonometric functions and relate them to...
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