Objects may be more linear than they appear. Scholars investigate the relationship between the number of bone mineral density scanners in the US and time. Once they take the natural logarithm of the number of scanners, a linear...

Hop into a resource on Beer's Law. A PowerPoint presentation introduces Beer's law as part of calculating bone density from X-ray images in the sixth activity in the series of seven. Individuals work on practice problems with this law...

Let there be light. The last installment of a seven-part series has pupils conduct an experiment on light attenuation through different numbers of transparency sheets. They then relate the results back to how X-rays measure bone density.

Young readers discover the basics of apples in a reading passage. Then they respond to four comprehension questions that ask when? what? and how?.

Discover the science of NASCAR! Young scholars rev up their learning as they explore aerodynamic principles. Hands-on activities help learners understand concepts of friction, kinetic energy, and potential energy.

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...

Here's your chance to save the world. The eighth lesson in a 25-part Energy Systems and Solutions unit has young scientists come up with ideas for individual or group projects. They identify ways to solve the energy crisis. Hope they...

Don't drop the ball on the resource ... drop an egg instead! A teacher-led demonstration has the class consider how to drop eggs into glasses when a tray is in the way. Hint: If you've ever seen a magician pull a tablecloth off a table,...

Extra, extra, read all about it! Scholars research information on endangered species and produce a news report to share their findings with the rest of the class. In groups, they then consider engineering solutions to problems on habitat...

When your parents say that your room's a pig sty, tell them about biomimicry. The sixth installment of a nine-part Life Science unit has scholars research the shelters used by animals in the natural world, like turtle shells. Using the...

Let nature guide your engineering designs. By taking apart a flower, pupils learn about reverse engineering. They use the results to brainstorm designs for new products or ideas. This is the seventh installment of a nine-part Life...

Everything can be reduced to atoms. The first installment of a six-part Mixtures and Solutions unit focuses on the building blocks of matter. Scholars review basic atomic structure, including protons, neutrons, and electrons, in...

Do you separate your trail mix before eating it? Then you've been separating mixtures your whole life! Scholars model a contaminated soil sample using trail mix and estimate the percentage of each component. They consider how to clean up...

A messy fountain is potentially an energy experiment in disguise. Groups investigate the variables in creating a fountain from soda and Mentos. The last activity in a six-part series on energy has the class observe the fountain in terms...

We know plants assist in the water cycle, but how do plants get water from the ground into the air? Through a series of demonstrations or labs, scholars observe the movement of water through plants. They microscopically view the cells...

Plants provide humans with food, shelter, and medications. Scholars gain a better appreciation for plants after learning their functions, divisions, and early ancestors. Each sub-topic includes slides highlighting vocabulary and...

Teach your class how to get out of a cell — or break in. The third installment in a seven-part series introduces the class to cell membranes and their functions. The lesson plan includes information to present to the class,...

Students design an investigation using yeast. In this environmental engineering lesson, students design an investigation to determine how environmental factors affect the growth of yeast. They will collect quantitative data and discuss...

Whatever floats your boat. Young engineers learn about density by measuring the masses and volumes of boxes filled with different materials. Using their knowledge of densities, they hypothesize whether objects with given densities will...

Are your household devices eating up a lot of energy? Pupils investigate household energy efficiency through a set of activities. They find ways to improve energy efficiency and reduce consumption. This is the 21st installment of a...

Tired of waiting for hot water? Groups of three determine the efficiency of an electric water-heating device. They calculate the amount of energy it takes to heat the water and the theoretical amount of energy required to heat the water....

There's nothing sticky about the resource, unless you count the gumdrops! Scholars create a model of a lithium atom, complete with protons, neutrons, and electrons. It's just that these models are made with gumdrops and toothpicks.

How high will it bounce? Groups determine the height different balls bounce off of different surfaces. By performing the necessary calculations, they determine the initial and final momentum of the balls. The included worksheet provides...

¿Qué haces ahora? Conjugate common Spanish verbs with a slideshow presentation that focuses on the present tense. As Spanish learners review personal pronouns and the parts of a verb, they work on forming the present tense with...