Understanding Humidity and Carbon Dioxide in Classroom Climate
Humidity is a crucial factor in our environment, affecting our comfort and the growth of plants. This article delves into the definition of humidity, its impact on our bodies, and its role in stabilizing temperatures. It also discusses the importance of managing humidity levels due to human activity's influence on climate change. Additionally, it touches on the significance of the water cycle and the effects of excess carbon dioxide. Watch informative videos and engage in group and individual activities to enhance learning about these topics.
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Humidity Let s Learn - Carbon Dioxide Lesson 7 Let s Learn Classroom Climate
Lets Learn - What is humidity? Humidity is a measure of how much water there is in the air. When water is in the air it's in the form of an invisible gas called water vapour. If there's lots of water vapour in the air, this means the humidity will be high. When we get hot, our bodies sweat to help cool us down. When it is humid there's already lots of water vapour in the air. That makes it more difficult for your sweat to evaporate into the air. So high humidity can leave you hot and sticky. Watch the following video to find out more about humidity: https://www.bbc.co.uk/bitesize/topics/z6hv9j6/articles/zsqfp4j
Is carbon dioxide good or bad? Let s Learn What is humidity? Humidity can help stabilize and regulate the temperature of our environment. It also supports the growth of plants. There are two types of humidity: Specific humidity and relative humidity. Specific humidity - also known as the moisture content , this is a measure of how much water vapour there is in the air. It is measured in grams of water vapour per kilogram of moist air. Relative humidity - this is a measure of how saturated the air is. In other words, how much water vapour the air contains compared to the maximum it could contain. It is measured as a percentage %.
Where does it come from? Where does it come from? Humidity happens when water evaporates from rivers, lakes and oceans on Earth. Evaporation is part of a process called The Water Cycle. Discuss this image of the water cycle in pairs.
Is humidity good or bad? Is carbon dioxide good or bad? Flooding in Skewen, Wales Human activity is beginning to affect humidity levels on our planet and this can be bad for the environment. The atmosphere, land and oceans are all warming. This means that more water is being evaporated from the Earth s surface and more water can be held in the air as a gas. This means that there is more risk of severe weather such as heavy rainfall, causing flooding and more frequent heatwaves. Heatwaves in the UK
Group Activity Let s Learn - Group Activity Watch the following video: https://www.youtube.com/watch?v =zBnKgwnn7i4&feature=emb_imp_w oyt Work in groups to create a large diagram of the Water Cycle. Draw arrows to show the processes of evaporation and condensation. Here is a simple example: Condensation
Lets Learn - Individual Activity Research humidity and the water cycle. Write a paragraph to explain your findings. Questions to consider: What do we need humidity for? What affect does too much humidity have on our environment? What affect does too little humidity have on our environment? How and why do humidity levels change?
