Polar Trec
South Pole Ice Cream!
How can you turn an ice cream activity into a scientific investigation? It's easy if you know ionic compounds, heat transfer, and the exothermic and endothermic process. Learners will explore the science behind freezing, insulation, and...
Southwest Florida Water Management District
WaterWeb - Conservation and Water Supply
If 71% of our planet is covered with water, why do we need to bother conserving water? Find out with these activities designed for middle and high school environmental scientists. From reading articles to solving crossword puzzles, to...
Physics Classroom
All Work and No Play Lab
Don't let the term, "slotted wood board" detract you from the value of this experiment. Class members tie a string to a cart and, with even horizontal force, drag it up an inclined plane. The objective is to compare the work done with...
Lesson Snips
Who Killed the Flowers?
This could be really good, or it could be really bad! The crime to be solved is, "Who went pee in the flowerpot?" Given four imitation urine samples, young chemists or crime scene investigators perform pH, glucose, and turbidity tests to...
Nuffield Foundation
Dissection of the Ventilation System of a Locust
Jiminy cricket! If you find yourself plagued by fear of dissection, these locust respiratory system dissection directions will walk you through everything you need to know. Teens inspect a living locust to begin with, then jump over to...
Curated OER
Elastic Recoil in Arteries and Veins
A lab in which high schoolers examine the difference between arteries and veins. Budding biologists will find out which blood vessel can stretch furthest, recording their data in a table then answering several questions evaluating their...
Nuffield Foundation
Identifying the Conditions Needed for Photosynthesis
Budding biologists often ask how scientists know what they do about different topics. In the lab described here, they have a chance to find out first-hand about the requirements for photosynthesis. Three sequential investigations are...
Nuffield Foundation
Measuring the Rate of Metabolism
Plant respiration can be a difficult concept for young biologists to grasp; with a hands-on lab, learners can collect and graph data, then calculate the metabolism rate for the plants they studied. If you do not have a respirometer,...
Acoustical Society of America
Musical Instruments
Mix it up and engage learners in a lesson on music and physical science. Using cups, strings, guitars, and voice, the class will experiment with sound vibration and frequency. They'll use each instrument and fill out a worksheet that...
Acoustical Society of America
Generalizing How Musical Instruments Work
Sound, vibrations, resonance, and frequency are explored as learners use music to foster scientific inquiry. They engage in three different sound experiments and follow up discussions to foster a better understanding of how musical...
Acoustical Society of America
Musical Instruments Part I - Woodwinds
What is the connection between sound and vibration? Learners find out as they conduct a series of experiments with instruments they create. The experiment is well explained, includes modifications for visuall and hearing impaired...
Physics Classroom
From a Feather to an Elephant
It is always a rush to drop objects from great heights, and with this physics experiment, class members will not be disappointed! They drop a single coffee filter from a balcony or table top, record the time it takes to reach the ground,...
Physics Classroom
Action-Reaction Lab
Computer-interfaced motion detectors are required to carry out this inquiry. It is a new twist on exploring motion with plunger carts: they are set back-to-back and then propelled away from each other. Their velocities are measured, and...
Curated OER
Investigating the Effect of Minerals on Plant Growth
How do different minerals affect the growth of plants? Budding botanists find out in a multi-week experiment that has them using solutions with specific mineral deficiencies. While there is a lot of preparation for the investigation,...
Curated OER
Hazards of Defrosted Food
Peas spoilage hot, peas spoilage cold: examine the bacterial growth on newly defrosted peas versus peas that have been defrosted for 24 hours. Using the session one questions in the "Microbes and Food Spoilage" PDF, learners will make...
Curated OER
Investigating What Makes Fruit Go Brown
Is there anything that can be done to slow the browning of fruit once it has been cut? High schoolers determine the answer through five different investigations involving apples, potatoes, and chemical reactions. After each experiment,...
Curated OER
A Model for Natural Selection- Spaghetti Worms
Does the early bird really get the worm? If so, which color of worm does it prefer? In an exciting and easy week-long field investigation, young field biologists set up a one square meter feeding area for birds. If you have a webcam,...
Google
The Law of Large Numbers and Probability
Learners investigate why theoretical probability doesn't always match reality. The activity involves using Python 2.7 (or Sage) to set up a Bernoulli Trial. It also involves setting up a spreadsheet to simulate the Birthday Paradox....
American Physiological Society
An Inquiry into Alcoholic Fermentation
Introduce life science high schoolers to their new "best buds" yeast! Using a wide variety of materials, lab groups design an experiment that illustrates how yeast acquires the resources it needs to undergo cellular respiration. The...
Teach Engineering
Quantifying Refraction
Class members discover how mathematics can quantify the behavior of light waves with the fourth installment of a seven-part series that teaches future engineers about equations related to refraction, including the equation to calculate...
Kenan Fellows
Determining Stream Health by the Diversity and Types of Benthic Organisms
How diverse are the benthic organisms found in local streams? Using the information learned in previous lessons on identification of macroinvertebrates and on calculating stream index values, groups determine the health of local streams....
Central Bucks School District
Igneous Rocks Lab
Searching for a simple igneous rocks experiment to assist pupils with rock classification based on texture and composition? In the activity, pupils view multiple rocks in various ways to determine texture and composition. They then...
Curated OER
The Kite Runner: Amir Debate
Does Amir have an obligation to find Sohrab and take him to the orphanage? That is the question class members debate as part of their reading of Khaled Hosseini's The Kite Runner.
NASA
Egg Drop Lander
You have to crack a few eggs to make a good engineer! Working in small groups, young scholars design, build, and test devices that protect an egg from breaking when dropped from a ladder.