Towson University
Case of the Crown Jewels
Can your biology class crack the Case of the Crown Jewels? Junior forensics experts try their hands at DNA restriction analysis in an exciting lab activity. The lesson introduces the concept of restriction analysis, teaches pipetting and...
Towson University
Transformation Lab
Transform your class' understanding of genes and antibiotic resistance with the Transformation Lab. Junior geneticists create and observe their own resistant strains of E. coli through research, discussion, and experimentation. The...
NASA
Supernova Chemistry
By measuring the wavelength, frequency, and intensity of electromagnetic radiation, scientists determine the temperature, density, and composition of far away items. Scholars rotate through ten lab stations using a spectroscope at each...
Polar Trec
Do Microorganisms Live in Antarctica?
Can microorganisms live in the dry, cold climate of Antarctica? Young scientists view a research project measuring microorganisms in the Taylor Glacier. They record the findings from dirty ice, clean ice, boots, sediment, and more. Then...
Polar Trec
Ozone Data Comparison over the South Pole
Did you know the hole in the ozone is seasonal and filled by January every year? The lesson uses scientific measurements of the ozone over the South Pole to understand patterns. Scholars learn that the hole grew bigger annually before...
Polar Trec
Beacon Valley Weather
In Beacon Valley, katabatic winds regularly knock fit adults to the ground. The lesson compares the actual temperatures to the wind chill after factoring in katabatic winds in Beacon Valley. Scholars learn to calculate wind chill and...
Polar Trec
Ice Cores: Modeling Ice Sheets
Ice cores provide scientists with knowledge of historic melt layers, air temperatures, greenhouse gases, and climate stability. Scholars work in groups to build layers representing snow and ice over thousands of years. Then, groups...
Polar Trec
Permafrost Thaw Depth and Ground Cover
The thaw depth of tundra creates a positive feedback loop with both global warming and the carbon cycle. Scholars sort photos and develop a hypothesis for ground cover and permafrost depth. Then they review the data and measurements...
Polar Trec
Bioaccumulation of Toxins
In 2015, Peter Cook found that sea lions with high levels of exposure to toxins suffered permanent brain damage if they survived at all. Scholars learn about the accumulation of toxins at various levels of the food chain. Using...
Polar Trec
Playground Profiling—Topographic Profile Mapping
The Kuril islands stretch from Japan to Russia, and the ongoing dispute about their jurisdiction prevents many scientific research studies. Scholars learn to create a topographic profile of a specific area around their schools. Then they...
CK-12 Foundation
Resistor Simulation
Many scholars struggle to picture electrons traveling in a circuit but understand water going through a pipe. The simulation compares circuits to water pipes. It walks pupils through four levels of questions, allowing them to switch...
University of Minnesota
Heads or Tails
How exactly does touch help us identify items? Students test this question by feeling a coin without moving their fingers and trying to determine if it is heads or tails. They test their accuracy by rubbing their fingers on the coins....
University of Minnesota
Try Angle
Does practice make perfect or just improvement? Scholars practice drawing a triangle on an Etch-A-Sketch. They learn about the part of the brain that controls sensory-motor integration and apply that to an analysis question.
University of Minnesota
Memory Box
Teachers encourage using memory tricks, but do they actually work? Scholars test word association in a short yet engaging activity. They use 10 seconds to memorize as many items as possible and determine if they are more successful if...
University of Minnesota
Get the Point(s)
Do all areas of your skin have the same sensitivity to touch? Playing with the sense of touch, this experiment has scholars guessing how many pin heads gently touch their arm and hand. In the second part, pupils answer questions about...
University of Minnesota
Tell Me About It
Have you ever tried following confusing or incomplete directions? In a hands-on experiment, partners give and follow directions to build a structure. Scholars apply their years of experience taking instructions to prove they know the...
American Chemical Society
Energy and Entropy of a Stretched Rubber Band
Stephen Perry invented and patented the modern rubber band in 1845. Young scientists put his discovery to work as they use rubber bands to observe entropy and enthalpy. They determine the change in free energy to figure out if it...
American Chemical Society
Entropy and Enthalpy Changes
My room isn't messy — it's a scientific experiment in entropy! Scholars investigate entropy, enthalpy, and spontaneity through a guided procedure and set of questions. The lesson connects the Second Law of Thermodynamics, energy transfer...
American Chemical Society
Exothermic, Endothermic, and Chemical Change
Scientists can't observe bonds breaking or forming, so how do they distinguish between exothermic and endothermic reactions? Young scholars complete two experiments to do just that. They monitor temperature change and calculate the...
American Chemical Society
The Energy Efficiency of Heating Water
Can a small change in laboratory procedures save energy? Scholars test three different methods for heating water in a science lab. Then, they calculate the energy efficiency for each and compare them to determine which uses the least...
American Chemical Society
The Energy of Evaporation
Do all liquids evaporate at the same rate? Young scientists observe the evaporation rate of three different liquids. They measure the time, the temperature, and the change in energy. After comparing the chemical formulas, scholars...
NOAA
What's the Difference?
Due to the isolation of seamounts, their biodiversity offers a great deal of information on the development of biological and physical processes. Pupils use simple cluster analysis to rate the similarity and differences in biological...
CK-12 Foundation
Car Collision
When a car crashes into a wall, does it just stop or does it bounce or roll backwards? A simulation relates velocity, kinetic energy, momentum, and restitution to answer this question. Scholars apply their knowledge through eight levels...
CK-12 Foundation
Angular Speed Simulation
Can you time the speed of your car perfectly so you only hit green lights? The challenge in the simulation is to alter the timing of the lights or the speed of the car in order to do just that. Scholars learn about angular speed as they...