When were increasing levels of CO2 first documented?

Microbiology: Citrate Agar

Are we alone in the universe? This is a fundamental question that intrigues us all.



On September 21, 2016, NASA scientists and stakeholders came together at the Smithsonian National Air and Space Museum for...

This live-action video program is about the word air. The program is designed to reinforce and support a student's comprehension and retention of the word air through use of video footage, photographs, diagrams and colorful, animated...

This program covers part 1 of the very important topic of the atomic theory of matter. We discuss how atoms combine together to form new compounds. Students review the law of conservation of mass and how the mass of the substances at the...

Bubbles will float on a dense layer of cold carbon dioxide. Parts Needed: 1 Bubble blower 1 Fish tank Dry ice

This video explains how to use the fact that the volume of 1 mole of any gas at room temperature and pressure is 24 decimeters cubed to perform different calculations related to gases. The video presents four examples of how this fact...

The video discusses the factors that influence the rate of photosynthesis in plants, including light intensity, temperature, and carbon dioxide concentration. Different zones are shown to demonstrate the impact of each factor on the rate...

You can reduce your own contribution to climate change by reducing the amount of carbon dioxide you release into the atmosphere. Your carbon footprint is measured by the amount of extra carbon dioxide your lifestyle adds to the...

An ultra-high-resolution NASA computer model has given scientists a stunning new look at how carbon dioxide in the atmosphere travels around the globe.



Plumes of carbon dioxide in the simulation swirl and shift as...

Exercise Physiology | Respiratory Quotient (RQ): What is it?

This video is answering the question of how does deforestation contribute to global warming.

We know that Robin Hood is an accurate and reliable archer, but just how good is he? Is his aim god-like, or is he liable to the errors and imperfections of mortals? This lesson will elaborate on the concept of reliability, including...

A new map of Mars' gravity made with three NASA spacecraft is the most detailed to date, providing a revealing glimpse into the hidden interior of the Red Planet. Satellites always orbit a planet’s center of mass, but can be pulled...

Carbon dioxide can be poured like water, extinguishing candles. Parts Needed: 1 Container with dry ice, candles

2021 was tied for the sixth warmest year on NASA’s record, stretching more than a century.



But, what is a temperatur

e record?

GISTEMP, NASA’s global temperature analysis, takes in...

Explanation: Over the past century, humans have accelerated the use of natural resources such as fossil fuels, old growth forests and groundwater. This has warmed the ocean and atmosphere, changed their chemistry and caused...

This video is answering the question of what is the carbon cycle.

In this video, we discuss how the respiratory system responds to changes in pCO2 and breathing imbalances such as hyperventilation and hypoventilation.

Professor Tim Flannery investigates how seaweed is helping to save the world. From growing the foods of the future, helping clean polluted water and even combating climate change. What does Rocky De Nys do with all the seaweed he's...

This video is answering the question of why is renewable energy better for the environment.

Hope you enjoy this Dragon Egg Bath Bomb DIY with HIDDEN SPONGE DRAGON Inside! ALSO we look at the science of Bath Bombs and ask "Why is it that Bath Bombs Fizz?". Ingredients below! For One Dragon Egg I used... 1/2 cup of citric acid 1...

Learn the basics about testing for negative ions. Which methods and techniques are used to test negative ions? Find out more in this video!

The video discusses how the Earth's atmosphere has evolved over the past 4.6 billion years, with a focus on the composition of gases present over different periods of time. It highlights the role of volcanoes, oceans, plants, and fossil...