Understanding the Benefits and Dangers of the Sun
Explore the benefits and dangers of the sun's energy, including how it affects our health and the environment. Learn about UV light, its impact on us, and ways to protect ourselves from harmful effects. Engage in hands-on activities to observe the effects of UV light.
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WALT: -understand the benefits and dangers of the sun -describe the protect our eyes from the sun ways to
Starter Task Is the sun a super hero or a villain? On a piece of paper, sort the following statements into either Superhero or Villain column: Helps people make Vitamin D. Causes sunburn. Provides warmth. Helps plants make food. Makes people feel happier. Causes wrinkles. Can cause skin cancer. Is a source of light. Damages the eyes.
Starter Task -answers Causes sunburn. Causes wrinkles. Can cause skin cancer. Helps people make Vitamin D. Helps plants make food. Makes people feel happier. Damages the eyes. Provides warmth. Is a source of light.
Today, we are going to focus on some of the dangers of the sun and UV light and how we can keep our self safe.
The Sun The sun gives off different types of energy. Do you know what types of energy the sun gives off? Invisible infrared radiation which makes us feel warm. Visible light which we can see. This light is made up of the colours of the rainbow red orange yellow green blue indigo violet
UV Light Another type of light that the sun emits is called UV light. UV light is invisible to humans, but we can see and feel its effects. Ultraviolet radiation can cause: sunburn, wrinkles and skin cancer, damages the eyes and can change the colour of materials.
UV Light Some UV rays are blocked by the ozone layer, but most of the UV light from the sun reaches us on earth. The amount of UV light that reaches us depends on different things. It is stronger at midday and in the summer. If there are no clouds there is more UV light. It also gets stronger nearer to the equator. The location can make a difference too - water, sand and snow all reflect UV light, making it stronger.
Observation activity: Seeing UV Light To see the effects of this invisible UV light, why not try the following activity at home? 1. Cut out 2 or 3 shapes from black card. 2. Place them on a piece of coloured paper, and position them in a sunny spot for a week. 3. When you take the shapes off, you should see that the paper around the shapes has changed colour slightly. 4. The paper under the shapes will still look the same. The UV light could not get to the paper under the shapes, so the paper under the shapes has not been damaged by the UV rays.
How can we protect our skin from UV light? Being outside in the sunshine can be great fun, but because of the damage UV rays can do, we need to make sure that we protect our skin from the sun. Watch the video below: https://www.bbc.co.uk/cbeebies/watch/sun- safety-for-kids?collection=out-and-about-with- cbeebies
Spend Time in the Shade between 11 and 3 You can find shade under trees, canopies, umbrellas, or indoors. Use Sunscreen of a Minimum of SPF 30 Sometimes, you may be outside in the sunshine and there won t be enough shade or clothing protecting you from the sun. This is when factor 30 sunscreen, or stronger, should be used to protect parts of your skin that the sun can reach. Cover up with a T-Shirt, hat and sunglasses to protect your body, face, neck and eyes from the sun Make sure you never burn It s easy to get sunburnt, even when you re not expecting to. It s very important to avoid burning your skin. Because you can t feel UV rays, it s easy to forget that they are there. Take extra care to do all of the above to lessen the risk of you getting sunburnt.
Main Task 1- Sun Safety Poster Using the information you have read so far, create a poster that tells people how to stay safe in the sun. What I m Looking For A catchy title ( e.g. Stay Safe in the Sun) Key instructions linked to the above pictures Colourful drawings to help your reader understand the important messages
UV Light and your eyes If too much light comes through the pupil, it can damage the retina of your eye. It causes pain, so that you instantlyclose your eyes, or turn away from a bright light. It is very important that you never look directly at the sun, as the light can damage your eyes very quickly. Bright lights indoors can also damage your eyes, so you should never look at them, or shine lights into anyone's eyes.
Protecting Your Eyes To protect your skin from UV rays, you can cover up or wear sun cream but what can you do to protect your eyes? There are several things you should do to protect your eyes from the sun or other bright lights. Sunglasses You should wear sunglasses when out in the sun. Sunglasses have a UV rating to show how well they block UV rays. Make sure you get sunglasses with a high UV rating. Some sunglasses don't have a UV rating - these are really just toy sunglasses and don't protect your eyes. In fact, because they have dark lenses but no UV filter, the pupil opens wider, actually letting in more UV rays!
Protecting Your Eyes Wrap around sunglasses are best, as they cover more of the eye. You can also wear a hat with a wide brim to shade you eyes. Make sure you have regular eye tests to check your eyes. Even if you are wearing sunglasses and a hat, you should still never look directly at the sun.
Main Task 2- Design your own sunglasses or hat Your task is to design a pair of sunglasses or a hat that will protect someone's eyes from the harmful effects of the sun. What I m Looking For A catchy title ( e.g. Stay Safe in the Sun) A detailed drawing of your sunglasses or hat including labels to show the different features. A few sentences that tell your customer why they need to buy your sunglasses or hat. Explain about the effects of the sun, and how your sunglasses or hat can help protect against them.
Plenary Look at the images below with partner and answer the following question: Which objects would you pack in your bag for a sunny day at the beach? Remember to explain your reasons why to a partner!
