Nuffield Foundation 
Going up in Smoke
Don't let all your hard work go up in smoke. Pupils conduct an experiment to see the harmful effects of cigarette smoke. They observe how smoke changes the color of white wool and an indicator solution.  
PHET
Features of the Sun
There are so many things to discover about the sun! Pupils discuss their knowledge of the sun, explore its features, apply their knowledge by labeling photographs, and then reflect on their learning by working in groups to draw and label...
Curated OER
Smart Design
Share pupil responses to an interactive slide show about a design initiative intended to help the world's poor. The class works in groups to brainstorm ideas, and then prepares sketches of their own design solutions. Each rendering...
CK-12 Foundation
Cell Cycle: Phases of the Cell Cycle
Eukaryotic cells go through a cycle of creation, reproduction, and death. The video choreographs the cell cycle to music from a popular movie. This prepares scholars to answer the questions in the online interactive.
CK-12 Foundation
Skeletal System Joints: Appendages
The hundreds of joints in the human body fit into five main categories. A quick video explains the joints in the skeleton, which are often the most confusing. The interactive reviews each of the five types of joints and has scholars...
CK-12 Foundation
Chemical Bonds: Covalent and Ionic Bonding
Get back to bonding basics. Science scholars get a chance to show what they know using a simple interactive. Pupils create models of covalent and ionic bonds before answering questions about each interaction. The resource includes a...
Curated OER
Living in the Desert
Conduct an investigation on the plants used by the Hohokam tribe. To survive in the harsh desert environment the Hohokam used many natural resources. Learners read, research, map, and graph multiple aspects of Hohokam plant use as a...
Nuffield Foundation 
Observing Earthworm Locomotion
One acre of land can contain more than a million earthworms. Scholars collect earthworms to observe their movements. Once placed on paper, the sound of movement often fascinates pupils. When placed on glass, the earthworm is unable to...
NASA
Christa's Lost Lesson: Effervescence
How are chemical reactions affected by gravity? Learners explore the phenomenon of effervescence as part of the Christa's Lost Lessons series. They compare findings in an experiment on effervescence to a video of a similar experiment in...
Curated OER
Turn It Upside Down: Introduction to Computer-Aided Design
Students explore a computer-aided design program. Students chart out roller coaster design, computer graphics and architecture. Students focus on understanding the connections between mathematics, science, technology and innovation.
Curated OER
Concept Structures in Architecture
Students develop a creative building design. In this technology instructional activity, students create a model of their building using a computer software. They present their final product in class.
Curated OER
You Ain't Nothin' But a Rock Hound
Here is an excellent lesson on rocks! In it, learners explore the world of rocks through the use of video, hands-on activities, and cooperative projects. This outstanding plan is chock full of terrific activities, websites, streamed...
Curated OER
Move It!!!
Students explore motion by observing the movement of people and duplicating those movements. They compare and contrast various kinds of movements and identify different types of movements in pictures. They build an object that can be...
Curated OER
Investigating Mitosis in Allium Root Tip Squash
Preparing the root tip samples is the most challenging part of the mitosis-viewing lab found here, but the directions help ensure you have everything you need. There is no worksheet included; however, there is a sample data table....
Take the challenge
Connecting with Natural/Open Spaces
Get your class outside, away from the television, and maybe even learning something about nature while they're at it. Individuals will chose an open, natural space to spend time in for several days. Each day they will complete a page in...
Curated OER
What do you know about earthquakes??
Ninth graders compare and contrast various writing styles and distinguish technical writing from other writing techniques. They assess personal knowledge regarding earthquakes and earthquake preparedness.
Nuffield Foundation 
Effect of Size on Uptake by Diffusion
Cell size is limited by the surface area to volume ratio, but why is this true? Scholars measure the surface area and volume of cubes before placing them into liquid. After a set amount of time, they measure the uptake by diffusion for...
Curated OER
Organic Chemistry Problem Set Exam 1
Though there are technically only 13 questions on this exam, they take up six pages and make a thorough assessment of organic chemistry principles. There are plenty of diagrams to label or complete. Emission spectra are displayed for...
Curated OER
Why and How Atoms Combine
Here is a top-notch handout to supply your chemistry class with. It covers valence electrons, Lewis diagrams, the octet rule, and more! Technically it is less of a instructional activity than a detailed explanation of these chemical...
Curated OER
Structure and Function of the Cell/Introduction to the Cell
So, this is not technically a worksheet, but rather a chapter of reading material, pictures, and diagrams introducing young biologists to the cell. Cell theory, diversity, size, and shape are described. The internal organization and...
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
The Earth in Space
High schoolers use computer images to explain why the Earth has seasons and examine the phases of the moon. They create 3-D images and present them to the class. They answer a series of questions at the end of the lesson.
Institute of Electrical and Electronics Engineers
Stop and Go
It's "Green light, go!" with this lesson! STEM classes are illuminated with the history of traffic signals and how the engineering design has improved over time. They also learn about patents for new inventions. Finally, they research in...
CK-12 Foundation
Graphs of Linear Model of Direct Variation: On the Moon
You'll be over the moon about this resource. Scholars draw a line representing the weight of an object on the moon based on its mass. Consideration of the constant of proportionality allows them to see relationships between weight of an...