![CO2 symbol in front of a school](/sites/default/files/styles/resource_card_image_360x300_/public/2024-06/2024_Original_CO2IndoorsOutdoors_Bil_ResourceHeader.jpg?itok=DIU5YP4K)
Carbon Dioxide: Outdoors and Indoors
Backgrounders
Learn about the importance of carbon dioxide, its sources and how people control it indoors.
![Green chemistry industry icon](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Green_chemistry_industry_icon.jpg?itok=NorVcUt3)
Introduction to Green Chemistry
STEM Explained
Green chemistry is a field that looks at the sustainability of products and processes designed by people.
![Cars driving through thick smog](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/cars_driving_through_smog.jpg?itok=oUpI0xvE)
How Vehicles Pollute the Air
Backgrounders
Learn how vehicles affect air quality, including their contribution to smog.
![fuel cell car header](/sites/default/files/styles/resource_card_image_360x300_/public/2022-12/fuel%20cell%20car%20header.jpg?itok=jTanjOIn)
Hydrogen Fuel Cell Vehicles
Backgrounders
Learn about vehicles that use hydrogen for fuel.
![Vegetables and fruits on display](/sites/default/files/styles/resource_card_image_360x300_/public/2022-04/vegetables-and-fruits.jpg?itok=crppXKAt)
Plant Pigments
Backgrounders
Why are there so many colours of plants? Learn about plant pigments and their role in plants.
![Pepper plants on the ISS](/sites/default/files/styles/resource_card_image_360x300_/public/2022-04/peppers_ISS.jpg?itok=87tPUQjm)
Tropisms in Plants
Backgrounders
Learn about the different ways that plants move in response to their environments.
![Plant Cells with Visible Chloroplasts](/sites/default/files/styles/resource_card_image_360x300_/public/2022-03/plant_leaf_cells_closeup.jpg?itok=-KZuT8ir)
Specialized Cells of the Leaf System
Backgrounders
Learn about the structure and function of the cells in leaves.
![Seedling with sunlight](/sites/default/files/styles/resource_card_image_360x300_/public/2022-04/seedling_sunlight.jpg?itok=FWDgKDZv)
Light & Plants
Backgrounders
Learn about the process of photosynthesis and how it is affected by light levels.
![Heating a liquid over a flame in a lab](/sites/default/files/styles/resource_card_image_360x300_/public/2021-11/reaction_types_header.jpg?itok=RwhxbpFu)
Types of Chemical Reactions
Backgrounders
Learn about the four main types of chemical reactions.
![Test tubes with colourful liquids](/sites/default/files/styles/resource_card_image_360x300_/public/2021-11/test-tube-with-colourful_liquids.jpg?itok=MEo5D0U_)
Evidence of Chemical Change
Backgrounders
Learn how to tell if a chemical reaction has taken place.
![Electroplating equipment](/sites/default/files/styles/resource_card_image_360x300_/public/2021-11/electroplating-equipment.jpg?itok=jJASnDjb)
Chemical Reactions: Conditions & Speeds
Backgrounders
Learn about the special conditions that let some chemical reactions take place.
![Solutioneers Episode 5 screen shot](/sites/default/files/styles/resource_card_image_360x300_/public/2020-04/Solutioneers_Episode_5_header.jpg?itok=JUEX3E1V)
The Solutioneers Week 5: Chemical Bonding
Interactives
This week's episodes and hands-on activity explore some cool chemistry!
![Leaf and the Sun](/sites/default/files/styles/resource_card_image_360x300_/public/2020-01/Plant_Functions.jpg?itok=60gbqGFi)
Plant Functions
Backgrounders
Learn about the important plant functions of photosynthesis, respiration and transpiration
![Platinum crystals](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/Platinum-crystals.jpg?itok=CIVtGM1E)
Catalytic Converters
STEM Explained
Learn about how catalytic converters make vehicle emissions less harmful.
![Scott Kelly et Terry Virts inspectent le système d’élimination du dioxyde de carbone de la SSI (Photo via Wikimedia Commons)](/sites/default/files/styles/resource_card_image_360x300_/public/2019-08/6572.jpg?itok=uSk7J690)
Carbon Dioxide on Earth and on the ISS
Backgrounders
Carbon dioxide is an important part of the air on Earth and in space. What is carbon dioxide? How is it measured? How can it affect us mentally and physically?