National Wildlife Federation
What is DBH?
When measuring the circumference of a tree, does it matter how high you place the measuring tape? Most scholars have never considered this question, but scientists know that measurement techniques must be standardized. The 13th...
Curated OER
Measuring the Number Of Calories In Sunlight
Learners., in groups, define calorie and compare the absorption of solar energy by three different collectors. They define solar constant and offer several explanations for discrepancies between the data collected and the solar constant.
Curated OER
How to Make Copperas from Pyrites
Learners produce copperas from iron pyrite nodules. In this chemistry lesson, students determine the different applications of copperas.
Curated OER
Clam Shell Data Collection Sheet
In this clam shell worksheet, young scholars collect data about 10 clams and measure their length and width. They identify if the clam has a hole or not in its shell and they indicate the location profiled, date, time of day, tidal stage...
Texas State Energy Conservation Office
Investigation: Insulation
Youngsters compare the heat-holding abilities of three different cans by insulating two with different materials and measuring the temperature change of hot water over a 20-minute period.
Curated OER
Arkansas State Mineral: Quartz Mineral
The quartz crystals found in the mountains of Arkansas are among the purest and clearest in the world! This lesson has middle schoolers focus on this state mineral of Arkansas as they study the state's geography. A fun game is...
Curated OER
How Bright are the Stars?
Learners observe the brightness of stars and are introduced to the concept of apparent brightness as a measure of how much light hits a detector of a surface area during a given time. In this star lesson plan, students make connections...
Curated OER
If You Can’t Stand the Heat
Students design and build their own solar cooker. In this math instructional activity, students determine the relationship between the angles of the sun, reflection and cooking time of the solar cooker. They test their project, collect...