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Series 2: 10. Lifeboat and Concrete
She goes on a training rescue mission with a lifeboat team to find out how the equipment on a lifeboat works. She shows us how the special thermal-imaging cameras are used to find people who are in trouble - even at night! Next, she visits a quarry to see how gravel, sand, cement and water are mixed together to make concrete. Maddie uses her special cameras to follow the journey the ingredients take from the quarry to the plant where everything is mixed together. We see how the mixing lorry then takes the concrete to the building site and how it is poured to make a road!
Source: CBeebies
Most recent episodes of Do You Know?
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Series 3: 2. Plant And Compost
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Series 3: 1. Skyscraper And Flying Bird
Maddie finds out how really tall buildings are made out of steel and concrete. She visits a skyscraper construction site to explain how the concrete columns that are buried deep ...
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Series 3: 16. Metal Recycling Centre And Road Sign
Today Maddie is learning about metal, and how it can be recycled and used again. Maddie visits a recycling centre where they recycle metal from old cars. She uses her special ca ...
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Series 3: 15. Clouds & Rain And Radiator
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Series 3: 14. Digestion And Meringue
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Series 3: 13. Beehive And Mug
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Series 3: 12. Bowling Alley And Ribbon
Maddie heads to a bowling alley to find out how it works. She takes her special cameras and looks behind the lane to see where the pins end up and how they get put back in the r ...
29-09-2025
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Series 3: 11. Cereal And Potato Harvester
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Series 3: 10. Wind-up Toy And Cricket Bat
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Series 3: 9. Hearing Aid And Whistle
In today’s episode Maddie is listening for sounds. First, she discovers how wearing a hearing aid can help us hear more clearly. She meets 7 year old Zara who uses a heari ...
24-09-2025
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Series 3: 5. Singing And Trombone
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Series 3: 6. Bridges And Playground Flooring
In today’s episode Maddie is going high and low! She takes her special 360 camera to the top of the longest suspension bridge in the UK to find out how it works. Maddie di ...
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Series 3: 3. Car Engine And Car Transporter
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Series 2: 22. Hand Dryer And Toilet Roll
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Series 2: 25. Refrigerator And Mushrooms
In today's episode, Maddie is at home to show us how a refrigerator works. She explains how the pump and the long pipes inside a fridge change a cooling liquid into a gas to hel ...
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Series 3: 7. Butterfly And Wallpaper
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