American Chemical Society
Surface Tension
A drop of dew holds a sphere shape even when sitting on a seat thanks to the surface tension of water. Learners observe the phenomena of surface tension in water. Through demonstrations, hands-on activities, and discussions they explore...
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...
Teach Engineering
Study Design for Air Quality Research
Provide your class with the tools they need to design a research project. Groups examine case studies to gain information about the process involved in designing a research project. They use materials provided to brainstorm and develop a...
North Carolina Consortium for Middle East Studies
Missing Pieces of the Puzzle: African Americans in Revolutionary Times
What's missing from most studies of the American Revolutionary War is information about the role African Americans played in the conflict. To correct this oversight, middle schoolers research groups like the Black Loyalists and Black...
Teach Engineering
Airplane Tails and Wings: Are You in Control?
Keep everything under control. The lesson plan, the 16th segment in a 22-part unit, provides a more detailed look at the parts of a plane, specifically the control surfaces. Pupils learn about the construction of the wings and the tails...
Teach Engineering
Battle of the Beams
Make the strongest beam possible using taffy? Groups mold a taffy-water mixture into a beam and a reinforcing material of their choice. To finish the final installment of a two-part series, participants test its strength by adding...
Teach Engineering
Build the Biggest Box
Boxing takes on a whole new meaning! The second installment of the three-part series has groups create lidless boxes from construction paper that can hold the most rice. After testing out their constructions, they build a new box....
Teach Engineering
Cost Comparisons
Our final proposal for the cost of the bridge requested is ... In the last segment in a series of 10, pairs work together to develop a proposal for a city bridge design. The class completes a cost comparison between concrete and steel to...
Teach Engineering
Let's Get it There Fast
Are planes the best shipping method? Using maps, pupils determine the fastest mode of transportation between two cities. Given a list of items to ship, groups decide the best shipping method to finish the 18th segment of a 22-part unit.
Curated OER
Grand Designs And Great Failures
Students extend their understanding of floating, sinking, density, and buoyancy and apply it to the design and testing of ships. students discover that most ships are constructed very similarly-whether they are schooners or destroyers.
Curated OER
Ships 3: Grand Designs And Great Failures
Middle schoolers engage in this, the third in a three-part series on ships. The overall lesson series is designed to allow students to extend their understanding of floating, sinking, density, and buoyancy and apply it to the design and...
Teach Engineering
Buoyant Boats
Eureka! Using the clay boats made in the previous lesson, learners investigate the idea of buoyancy and water displacement to finish the last installment of five in a Floaters and Sinkers unit. Their observations during the activity...
Teach Engineering
Airplanes Everywhere: Land! Water! Sky! Oh, My!
How important is aviation? Using the background information, teachers provide the class with a brief history of aviation. The class discusses how airplanes are important to the area of transportation in the 17th installment of a...
Teach Engineering
Determining Densities
Don't be dense—use a robust resource. The second installment of a five-part Floaters and Sinkers unit has learners determine the densities of several objects. As part of the activity, they learn the displacement method for finding...
Teach Engineering
Enough Energy? Play the Renew-a-Bead Game
Pairs simulate the energy usage of different countries by drawing beads from a bag, which contain different beginning ratios of non-renewable and renewable energy resources. The activity concludes with a series of questions to tie the...
Teach Engineering
Active and Passive Transport: Red Rover Send Particles Over
I can move about freely, but you cannot. The class models the movement through cell membranes by way of passive and active transport. Members of the class play the roles of various proteins, atoms, compounds, and cell actions and mimic...
Teach Engineering
How Effective is Your Sunscreen?
Protect skin from UV radiation! Groups design and conduct an experiment to test the effectiveness of UV safety products. The groups collect the data from the experiment and prepare a lab report. In the second day of the activity,...
American Chemical Society
Represent Bonding with Lewis Dot Diagrams
Lewis dot diagrams, Lewis dot structures, and electron dot diagrams are all the same thing. Young scientists learn how to draw Lewis dot diagrams and come to understand how dots and dashes represent valence electrons and ionic or...
Teach Engineering
Efficiency of an Electromechanical System
How efficient is a motor in a LEGO set? Future engineers conduct an activity where a LEGO motor-generator system raises an object to a specified height. They then show what they learned and use their measurements to calculate the energy...
Teach Engineering
Making Moon Craters
Create an egg-citing study of energy. Pupils investigate the effect of height and mass on the overall amount of energy of a falling object. The fourth segment in a six-part series on energy uses a weighted egg falling from different...
Curated OER
The Civil War -- Emancipation Experience
Students examine the changes that took place in the lives of Americans as a result of the Civil War in this simulation lesson.
Curated OER
Tree Measurement
Students work in pairs taking measurements of a tree. They measure the trunk, crown, and height using vertical and horizontal measurement. Then students create a bar graph using the information they gathered.
Curated OER
The Food Pyramid
Learners determine that humans need food to function properly. For this nutrition lesson, students discuss the food categories used in the food pyramid by charting the foods eaten in one day.
Curated OER
Pop Rockets
Students work together to design and build a paper rocket. They place a propellant in the contraption to make it fly. They discover Newton's third law of motion.