New ReviewCan your young welders select the correct shielding gas mixture for the task at hand? Introduce them to the percent calculations needed to get the job done right with a simple, yet effective, career and technology lesson. After working...

New ReviewDo animals breathe faster when given more oxygen or more carbon dioxide? Young scientists observe the respiration rates of locusts under a variety of gas concentrations to answer that very question. They collect data, analyze the...

New ReviewHuman impacts on the environment can sometimes be difficult to measure, especially under water! An activity centered on ocean acidification gives science scholars the opportunity to examine the effects of carbon dioxide on marine life....

New ReviewAs the world turns ... so do the carbon and nitrogen cycles! Introduce them both to eager young biologists through an animated video, part of an extensive biology playlist. The narrator explains how each element moves through its...

New ReviewFinally, a photosynthesis activity that outshines the rest! Young biologists perform an experiment that allows them to observe photosynthesis through the production of oxygen. The lesson, part of the K20 series, also includes a study of...

Global warming ... greenhouse gases ... climate change ... sounds familiar, right? What about palm trees in Wyoming, or swimming in the sea near Antarctica? Science scholars discover the unbearable conditions Earth experienced during its...

We breathe oxygen, yet it is only 21 percent of what is in our air. The four gases found in air each have their own chemical formula and abundance. Increasing in difficulty, four puzzles review these properties.

Investigate a heated topic in environmental science. Scholars team up to play the parts of gas molecules in the atmosphere. As the teacher moves about, acting as the electromagnetic wave, learners react as their molecules would to the...

Enough talk about the Greenhouse Effect—let's actually look at it! Junior climatologists engage in a simple thermodynamics experiment on a cold winter's day to examine global warming. The activity simulates rising carbon dioxide levels...

If most gases are invisible, how do we know so much about them? Pupils practice associating the name, formula, testing method, and outcome for four common gases using an interactive. Users build on the content of their first puzzles to...

When was the last time your class saw a catalyst in action? Chemistry scholars observe an activated complex during an engaging experiment. Through both color change and evolution of a gas, individuals gain insight into the...

Precipitation reactions are always interesting. How about one that forms a precipitate using a gas? Chemists of any age will enjoy this twist on a standard solubility lab. Partners observe the lack of interaction between sodium hydroxide...

Combat ocean acidification with bubbles. Young engineers create a system that reduces the acidity of water. Dry ice in water helps simulate ocean acidity, and blowing bubbles into the water results in a gas exchange that neutralizes the...

Can your young chemists identify the most commonly used chemicals in the lab? Introduce the class to the go-to substances in most middle and high school chemistry experiments with an interactive. The resource offers timely feedback as...

Oxygen keeps us alive, but did you ever consider how Earth found the right balance? Eons produced this video as part of a larger series that explores when Earth contained very little oxygen and green oceans ruled the planet. Viewers see...

With so much information floating around about global warming, how can we tell what's really going on? Examine the evidence through a video from Veritasium to sift through everything we hear. The narrator presents convincing data when...

When life hands you lemons ... experiment on them! Green chemistry gurus compare extraction methods for essential oils through a lab activity. Lab groups use traditional distillation and liquid carbon dioxide extraction methods, then...

Water beetles live underwater their entire lives, getting air from a bubble they carry with them. The video, part of an Insect playlist by Brain Scoop, explains how they breathe and why they are fascinating for evolutionary studies. It...

How bright are your classes? An interactive lesson has scholars explore how light interacts with carbon dioxide in the air and the surface of the earth. They watch a temperature scale as light interacts with the environment.

Hidden bacteria have been trapped in the permafrost of our northernmost climates. An intriguing video explores climate change and its effects on the melting permafrost. Learners discover possible impacts these bacteria can have on the...

How much does your class know about the relationship between climate change and carbon dioxide? Science scholars explore the nature of greenhouse gases and rising ocean temperature through demonstrations, research, and experiments. The...

Physics ... saving lives, one equation at a time! Learners discover the sad truth about premature babies and respiratory distress syndrome, which claimed millions of lives before scientists could understand its cause. Physics, and the...

Some times of the year seem too busy for physics experiments. Fear not; a video explains five fast experiments using household materials. From creating CO2 to messing with static electricity, scholars enjoy playing with science. Besides,...

Investigate the chemistry implemented in cars that keep our air safe. Scholars learn the role of the catalytic converter in changing dangerous gases to harmless byproducts. The video instructor discusses the specific chemical reactions...