Creative Science for Kids

Let’s celebrate World Frog Day with five fun and fascinating fast facts about frogs, a chat with some froggy scientists, Dr Jodi Rowley and Dr Rebecca Webb, and a gooey chia seed frog spawn activity for you to try yourself at home.

 

Presented by Jenny Lynch and Matilda. Written and produced by Jenny Lynch. Music by Purple Planet Music. Sound effects by Pixabay.

Image: Green Tree Frog Litoria caerulea (Photo credit: Dr Jodi Rowley)

 

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Creative Science: https://www.creativescience.com.au

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Episode content:

00:00 Introduction and fast facts

03:33 Interview with Dr Jodi Rowley

11:19 Interview with Dr Rebecca Webb

14:51 Chia seed frog spawn activity

 

FrogID citizen science project led by Dr Jodi Rowley at the Australian Museum: https://www.frogid.net.au/

 

Dr Rebecca Webb at the University of Melbourne: https://findanexpert.unimelb.edu.au/profile/962839-rebecca-webb

 

Chia seed frog spawn activity

You will need: cold water, a measuring cup, a tablespoon, 2 tablespoons of black chia seeds, and a spoon for stirring. Chia seeds are small seeds that you might be able to buy at a supermarket, a fruit and vegetable shop, or a health food store.

Wash your hands with soap and warm water.

Add half a cup of cold water to the measuring cup.

Add two tablespoons of black chia seeds to the water.

Stir the mixture and leave it to sit for about 5 minutes.

Stir it again and then leave the mixture to cool down in the fridge for 2 hours.

After 2 hours, take it out of the fridge and stir the mixture one more time.

Make sure your hands are clean before picking up the mixture to play with it.

When you take it out of the fridge, you will have a cup of gooey chia seed frog spawn.

You can also try adding honey or maple syrup to the chia seed mixture to make a tasty snack!

 

What’s happening?

Chia seeds are the seeds of the plant Salvia hispanica which is native to Mexico and Guatemala. When the seeds are mixed with water, a slimy coating forms to protect the seeds until they have time to grow. The slimy coating on the seeds looks a lot like the gooey jelly in frog spawn that protects frog’s eggs until they are ready to hatch.

It’s time to widen your mind with five fun and fascinating fast facts about creativity, an interview with Cristy Burne, a storyteller who knows a lot about science and creativity, and an imaginative paper activity for you to try yourself at home.

 

Written, presented, and produced by Jenny Lynch.
Music by Purple Planet Music. Sound effects by Pixabay.

 

Creative Science: https://www.creativescience.com.au

Facebook: @creativescienceaustralia

Instagram: @creative_science_australia

 

Episode content:

00:00 Introduction and fast facts

04:02 Self-correcting science

05:11 Interview with Cristy Burne

11:14 Piece of paper activity

 

Cristy Burne: www.cristyburne.com

 

Piece of paper activity

You will need: an ordinary piece of paper

This activity starts with a couple of ideas of things to do with a piece of paper and then it will be up to you to come up with something new to do with the paper.

Try rolling up the piece of paper to make a cylinder shape. Stand the cylinder on one end. Is it strong enough to support something? Which way did you roll the piece of paper? Was it a long cylinder or a short cylinder? Try rolling it the other way. Is it stronger now?

Hold the piece of paper high above the ground and let if fall to the floor. Does the paper fall quickly or slowly? If you fold the paper in half, will it fall any faster?

Now it’s your turn. What can you think of to do with the piece of paper? Give yourself a few minutes of thinking time to hold the piece of paper and imagine something to do with the paper that you have never thought of doing before.

What’s happening?

Creativity in science often involves thinking about existing ideas and imagining something new. Taking the time to look at familiar objects in new ways can lead to exciting new thoughts, inventions, and discoveries.

Let’s explore the nature of the Universe with five fun and fascinating fast facts about the four fundamental forces, an interview with Professor Lisa Harvey-Smith, an astrophysicist who knows a lot about the Universe, and a surprising paper folding activity for you to try yourself at home.

 

Written, presented, and produced by Jenny Lynch.
Music by Purple Planet Music. Sound effects by Pixabay.

 

Creative Science: https://www.creativescience.com.au

Facebook: @creativescienceaustralia

Instagram: @creative_science_australia

 

Episode content:

00:00 Introduction and fast facts

05:11 Interview with Professor Lisa Harvey-Smith

11:29 Paper folding activity

 

Professor Lisa Harvey-Smith: www.lisaharveysmith.com

Future You: www.futureyouaustralia.com.au  

 

Paper folding activity

How many times do you think you can fold a piece of paper in half?

You will need: a long piece of toilet paper.

Lay the toilet paper out on the floor and fold it in half lengthways. That’s one fold.

Keep folding the toilet paper in half over and over again and remember to count each fold. After 4 or 5 folds, the bundle of paper will be getting fairly thick. Can you keep folding?

Keep folding until you cannot fold the paper in half anymore.

 

What’s happening?

The toilet paper is pretty thin, but every time you fold it in half, the thickness of the bundle of paper doubles. After one fold, it is twice as thick as the original toilet paper. After the second fold, the bundle is 4 times as thick. After the third fold, the bundle is 8 times as thick, then 16 times, and then 32 times, and after the sixth fold, the bundle is 64 times thicker than a single sheet of toilet paper.

 

The current world record for folding a piece of paper is 12 times and the record was set in 2002 by Britney Gallivan, a high school student in the United States. Britney used mathematical equations to work out the size and thickness of the paper she needed to achieve the record, and the tissue paper she used was over one kilometre long! After the 12th fold, the bundle of paper was 4,096 times as thick as a single layer of tissue paper.

It’s time to get sustainable with five fun and fascinating fast facts about plastic, an interview with Dr Charlotte Beloe, a scientist who knows a lot about microplastics in the ocean, and a cornflour bioplastic activity for you to try yourself at home.

 

Written, presented, and produced by Jenny Lynch.
Music by Purple Planet Music. Sound effects by Pixabay.

 

Creative Science: https://www.creativescience.com.au

Facebook: @creativescienceaustralia

Instagram: @creative_science_australia

 

Episode content:

00:00 Introduction and fast facts

03:26 Recycling plastic

05:14 Interview with Dr Charlotte Beloe

10:29 Bioplastic activity

 

Bioplastic activity instructions

Ingredients: 1 tablespoon of cornflour, 4 tablespoons of water, 1 teaspoon of vinegar, ½ teaspoon of glycerine, and a few drops of food colouring.

Kitchen equipment: a small saucepan, stove or hotplate, metal spoon for stirring, and a baking tray on a heat-proof surface.

 

Add all of the ingredients to the small saucepan and stir with the metal spoon until everything is well mixed.

NOTE: An adult must assist with the next steps that involve heating the mixture on a stove or hotplate.

 

Stir the mixture over a medium heat and keep stirring with the metal spoon until the mixture starts to boil.

Reduce the heat and keep heating and stirring for 2 or 3 minutes.

Pour the hot mixture onto the baking tray and spread it out to make a thin sheet.

Leave the sheet of bioplastic film to cool and dry for 1-2 days. The finished bioplastic film should be see-through and flexible.

 

This recipe can also be used to make moulded bioplastic shapes by pouring the hot mixture into silicone moulds (e.g. silicone ice-cube trays). The bioplastic in this activity is ‘compostable’, which means it will break down in a compost heap or if it is buried in the ground.

 

Corn flour contains starch which is made up of ‘amylose’ and ‘amylopectin’ molecules which are both made up of glucose molecules. Heating corn flour with water causes some of the starch to form long chains. Vinegar affects the formation of the long chains. The glycerine acts as a ‘plasticiser’ which is a chemical that can change the softness and pliability of a plastic. Changing the amount of glycerine in the recipe will change the properties of the bioplastic film.

It’s time to take a splash in the sea with five fun and fascinating fast facts about marine mammals, an interview with Dr Vanessa Pirotta, a wildlife scientist who knows a lot about whales, and there’s a warm-blooded blubber activity for you to try yourself at home.

 

Written, presented, and produced by Jenny Lynch.
Music by Purple Planet Music. Sound effects by Pixabay.

 

Creative Science: https://www.creativescience.com.au

Facebook: @creativescienceaustralia

Instagram: @creative_science_australia

 

Episode content:

00:00 Introduction and fast facts

03:49 Dugongs and manatees

04:31 Interview with Dr Vanessa Pirotta

11:06 Blubber fingers activity

 

Dr Vanessa Pirotta: https://www.vanessapirotta.com/

Books by Dr Vanessa Pirotta: ‘The Voyage of Whale and Calf’, ‘Oceans at Night’, ‘Humpback Highway’

 

Blubber fingers activity instructions:

Marine mammals have lots of special adaptations to help them survive in the sea. One of these adaptations is whale blubber, which is a layer of fat that keeps warm-blooded whales warm in cold ocean water.

You will need: a bowl, cold water from the fridge, ice cubes, two disposable gloves, a spoon, and some soft butter or margarine. If you don’t have any disposable gloves, try using two small plastic bags instead.

This activity is pretty messy, so do it next to a sink, with soap and warm water ready for washing your hands at the end.

Fill the bowl with cold water and add some ice cubes to the water to make it really cold.

Scoop 2 big spoonfuls of soft butter or margarine into one of the disposable gloves and squeeze the butter or margarine down into the fingers of the glove, pushing any air bubbles out of the fingers.

Put the other glove on one of your hands first. 

Put the glove filled with butter or margarine on your other hand and make sure your fingers are covered with the butter or margarine. 

Carefully place the fingers of both of your hands into the ice-cold water.
Try to keep your fingers in the water for at least 2-minutes, but take them out of the water if they feel too cold. What do you notice?

 

Your buttery fingers should last longer in the water because the butter is protecting your fingers from the icy cold water. Heat energy always moves from a warm object to a colder object and the butter is acting as an ‘insulator’ because it slows down the movement of heat energy out of your fingers.

A lot of cold-climate animals have blubber. Seals, whales, and polar bears, all have a layer of blubber to stop them losing too much heat from their bodies.