Howard Hughes Medical Institute
Pulse Chase Primer: The Meselson-Stahl Experiment
Experimental design can make or break an experiment. Young scholars analyze the pulse-chase analysis procedure by studying the Meselson-Stahl experiment. Using a video presentation, they discover how the pulse-chase analysis led to the...
Purdue University
Can You Design a Hot or Cold Pack?
You're getting warmer. Groups conduct an experiment to determine which of four chemicals are in hot/cold packs. They learn about exothermic and endothermic reactions and use this knowledge to design a hot/cold pack that is small enough...
Curated OER
Lesson 2 - Design Process-Measuring Wind Speed
A terrific lesson focused on the design process. It begins with a presentation, "Design: Solve a Problem," which lists the steps of the process and then introduces the specific challenge: to build a device that measures wind speed....
Cornell University
Making a Battery
Don't be shocked when your class has a blast making their own batteries! Science scholars examine a dry cell battery, then design and construct a wet cell battery. The activity guides them through the parts of a battery, the variables...
Curated OER
Build Your Dream Science Lab
Would your ideal science lab be filled with bubbling beakers and zapping Tesla coils? Or would it contain state-of-the-art computer technology and data analysis? Dream big with an innovative lesson that connects math and language...
Teach Engineering
Better By Design
Which modification is the best? Using the scientific method, pairs determine the effects of each control surface on the distance of a glider's flight. The activity, section 16 in a 22-part unit on aviation, allows pupils to gain a better...
K20 LEARN
The Cold, Hard Truth
Things are really getting heated in the lab! Science scholars scope out the facts about heat energy transfer using a simple lab from the K20 Center. Groups collaborate to observe temperature changes between hot metal and water, then use...
Colorado State University
How Can I Turn a Solar Oven into a Refrigerator?
Whether you want to heat things up in science class or cool things down a bit, an intriguing lab's got you covered! Science scholars explore the principles of thermodynamics using a solar oven, then change the conditions to turn their...
Curated OER
Go Fish!
So much science in one tiny fish! Introduce young biologists to the zebrafish, a common aquarium inhabitant. The small, unassuming organism presents an opportunity for learners to study habituation using an easy-to-care-for species. Lab...
Learning Games Lab
Bacteria Sampling
Scholars explore the procedure for bacteria sampling in a virtual lab by first walking through a detailed step-by-step procedure of preparing the samples of raw milk and pasteurized milk, growing the bacteria, and comparing results....
University of Minnesota
Makes Me Sweat
Never let them see you sweat ... unless you can't help it! Scholars design an experiment to determine the effects of stress on the body. They monitor sweat production under different conditions and relate the response to the function of...
Purdue University
Lifeguard Chair
Save the class from a lack of engineering experience. An engaging STEM activity has learners work in groups to design a lifeguard chair out of masking tape and index cards. They build and test prototypes, all while learning about the...
Polytechnic Institute of NYU
Potential vs. Kinetic Energy
Legos in science class? Watch your pupils fall in love with this activity. After learning to measure potential and kinetic energy, young scientists create their own ramps using Lego Mindstorm sensors and software.
DiscoverE
Bridges, Buildings and Beyond Activity Packet: Grades 3-5
The road to a better understanding of engineering lies with bridges and tunnels. A set of four engaging activities teaches learners about engineering concepts related to construction projects. They perform an experiment to find the...
Curated OER
More on Conduction and Convection
Why do some items feel colder when they are the same temperature? How should you keep your soda cold? What makes the wind blow? These are just some of the things middle schoolers discover when completing a lesson on...
Magic of Physics
Loads Lab
Take a load off! Introduce junior engineers to the effects of load on structural design with an easy-to-use interactive. Individuals apply one of many load options, examine its effects, then learn about the safeguards employed during...
Curated OER
The Marvels of Mud
Young scientists roll up their sleeves and get a little dirty in this three-day earth science investigation. Following the scientific method, children monitor the growth of algae in pond water samples in order to determine...
Curated OER
Dental Chemistry Analogy
After taking in background information on teeth, marble, eggshell, and fluoride, chemistry aces design an experiment. Their goal is to demonstrate whether or not fluoride has a similar effect on marble or eggshell as it does on tooth...
American Chemical Society
Changing State: Evaporation
Why do experiments require a control? Guide scholars through designing an experiment to see what they can do to evaporate water faster with a lesson that stresses the importance of controlling all variables. The second activity...
Curated OER
1999 U.S. National Chemistry Olympiad Part III
In this chemistry olympiad laboratory worksheet, learners design and carry out two experiments. They design one experiment to test for the percent mass of a substance in a solution and they design another experiment to identify two...
American Association for the Advancement of Science
Sensing the Invisible: The Herschel Experiment
Learners of light will construct a contraption in which light is passed through a prism and shone into a box. The temperatures at different points along the path and outside of the path of light. The intent is to imitate William...
Curated OER
Pet Rescue
Learners, in teams, follow the process of design, including the stages of investigation, creation, and reflection, as they devise a way to help "save" a (simulated) pet who is trapped in a pipe.
University of Georgia
What's So Special about Bottled Drinking Water?
Is artesian water designed to be better, or is it just from wells similar to those in the city of Artesium? This experiment looks at many different types of bottled waters, including artesian. Using a soap mixture, scholars test to see...
Curated OER
Designing Windmills
High schoolers study mechanical engineering and how it plays a part in the creation of windmills. They design and test their own windmills using various materials and sail designs.