Catch up TV

This episode is currently not available.

Series 1: 15. Crane and Bricks



Maddie visits a building site. She uses a special camera to see how a big crane works to move heavy objects from one place to another. An animation shows how the hydraulic mechanism, hidden inside the boom arm, enables the crane to extend high into the sky. Next, Maddie visits a factory to see how bricks are made from clay, shaped by rectangular moulds, and then fired in hot kilns for several days to make them strong.

Source: CBeebies

Most recent episodes of Do You Know?

Do You Know?

Do You Know? - Series 1: 1. Hamster Wheel And Insect Hotel

Series 1: 1. Hamster Wheel And Insect Hotel

Maddie meets some furry friends and creepy crawlies. She visits a pet shop and uses a special night-vision camera to find out how a hamster wheel works and how far a hamster can ...

22-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 25. Refrigerator And Mushrooms

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 t ...

19-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 24. Barcode And Fish Cake

Series 2: 24. Barcode And Fish Cake

In today's episode, Maddie is visiting a supermarket, where she finds out what barcodes are and how they work. At the checkout, we learn how an infrared scanner reads barco ...

18-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 23. Prosthetic Limb And Detection Dog

Series 2: 23. Prosthetic Limb And Detection Dog

In today's episode, Maddie is looking at the way things are made or trained to help us. First, she meets seven-year-old Anu, who uses a prosthetic leg. Maddie visits a work ...

17-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 22. Hand Dryer And Toilet Roll

Series 2: 22. Hand Dryer And Toilet Roll

In today's episode, Maddie is looking at things we use when we go to the toilet. She visits a factory to see how hand dryers work. She shows us how infrared light is used t ...

16-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 21. Fish Tank And Bath

Series 2: 21. Fish Tank And Bath

In today's episode, Maddie finds out about things that use water. She visits an aquatic centre to show us how a fish tank works, using a special underwater camera to explai ...

15-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 20. Kite And Wind Turbine

Series 2: 20. Kite And Wind Turbine

In today's episode, Maddie is outdoors finding out about things that use the wind. She finds out how a kite works when it flies high in the sky, shows us how to measure the ...

12-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 19. Television And Carpet

Series 2: 19. Television And Carpet

In today's episode, Maddie is relaxing at home, playing games and watching television. She shows us how a television screen works using millions of tiny squares called pixe ...

11-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 18. Lift And Spacesuit

Series 2: 18. Lift And Spacesuit

In today's episode, Maddie is finding out about things that go up and down. She shows us how a lift works, when it carries people up and down between floors of a building. ...

10-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 17. Bubbles And Chocolate

Series 2: 17. Bubbles And Chocolate

In today's episode, Maddie is having a party! She finds out how bubbles work when we blow into bubble mixture. She shows us how the surface tension of water changes when we ...

09-04-2019

CBeebies

All episodes

CBeebies

Most popular episodes of Do You Know?

Do You Know?

Do You Know? - Series 2: 24. Barcode And Fish Cake

Series 2: 24. Barcode And Fish Cake

In today's episode, Maddie is visiting a supermarket, where she finds out what barcodes are and how they work. At the checkout, we learn how an infrared scanner reads barco ...

18-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 12. Traffic Lights And Emergency Lights

Series 2: 12. Traffic Lights And Emergency Lights

In today's episode, Maddie is looking at useful lights. She shows us how traffic lights work so that vehicles can travel safely through a road junction. She visits a traffi ...

02-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 1: 14. Carousel And Wax Crayons

Series 1: 14. Carousel And Wax Crayons

Maddie goes for a fun day out. She visits a fairground and goes for a ride on a carousel, using a special camera to find out how it works. An animation shows how the carousel go ...

28-02-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 18. Lift And Spacesuit

Series 2: 18. Lift And Spacesuit

In today's episode, Maddie is finding out about things that go up and down. She shows us how a lift works, when it carries people up and down between floors of a building. ...

10-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 1: 21. Magnets And Teddy Bears

Series 1: 21. Magnets And Teddy Bears

Maddie is looking at toys. She uses a special slow-motion camera to find out how the magnets on a train set work. An animation shows how the north and south poles on magnets wor ...

11-03-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 22. Hand Dryer And Toilet Roll

Series 2: 22. Hand Dryer And Toilet Roll

In today's episode, Maddie is looking at things we use when we go to the toilet. She visits a factory to see how hand dryers work. She shows us how infrared light is used t ...

16-04-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 5. Opticians And Glasses

Series 2: 5. Opticians And Glasses

Today, Maddie is finding out how wearing glasses helps us to see more clearly. She visits an optician to see how an eye test works by having one herself. She reads the charts an ...

22-03-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 9. Handwash And Vacuum

Series 2: 9. Handwash And Vacuum

In today's episode, Maddie is cleaning up. She visits a factory where hand wash is made and uses her special camera to see inside a big vat to see the colour being mixed. N ...

28-03-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 6. Sleeping Bag And Mattress

Series 2: 6. Sleeping Bag And Mattress

It's bedtime and Maddie is finding out about different things we sleep on and in! At a campsite she uses a special thermal camera to show how the layers in a sleeping bag w ...

25-03-2019

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 17. Bubbles And Chocolate

Series 2: 17. Bubbles And Chocolate

In today's episode, Maddie is having a party! She finds out how bubbles work when we blow into bubble mixture. She shows us how the surface tension of water changes when we ...

09-04-2019

CBeebies

All episodes

CBeebies

© 2019 - Catchupplayer.co.uk