Ruben Meerman - The Surfing Scientist. 40 Cool Science tricks
Here you can read online Ruben Meerman - The Surfing Scientist. 40 Cool Science tricks full text of the book (entire story) in english for free. Download pdf and epub, get meaning, cover and reviews about this ebook. year: 2007, publisher: HarperCollins Australia;HarperCollins Publishers, genre: Children. Description of the work, (preface) as well as reviews are available. Best literature library LitArk.com created for fans of good reading and offers a wide selection of genres:
Romance novel
Science fiction
Adventure
Detective
Science
History
Home and family
Prose
Art
Politics
Computer
Non-fiction
Religion
Business
Children
Humor
Choose a favorite category and find really read worthwhile books. Enjoy immersion in the world of imagination, feel the emotions of the characters or learn something new for yourself, make an fascinating discovery.
- Book:The Surfing Scientist. 40 Cool Science tricks
- Author:
- Publisher:HarperCollins Australia;HarperCollins Publishers
- Genre:
- Year:2007
- Rating:4 / 5
- Favourites:Add to favourites
- Your mark:
The Surfing Scientist. 40 Cool Science tricks: summary, description and annotation
We offer to read an annotation, description, summary or preface (depends on what the author of the book "The Surfing Scientist. 40 Cool Science tricks" wrote himself). If you haven't found the necessary information about the book — write in the comments, we will try to find it.
Want to learn how to stick a potato through a straw? How you can make ice stick to a piece of cotton thread? Stick two books together without glue? Pick up a jar of rice with a pencil? Impress your mates? Too easy - the Surfing Scientist can show you how! Using only household ingredients and with nothing tricky for kids to buy, this book is perfect for every budding scientist or surfer! And its packed with facts, knowledge and trivia that interests and fascinates kids, and with photographs of each experiment to make the whole process easy but most of all fun! Perfect for curious kids, amazing and great fun - every cool science trick in THE book! Dr Karl Kruszelnicki Ages 7-12.
Ruben Meerman: author's other books
Who wrote The Surfing Scientist. 40 Cool Science tricks? Find out the surname, the name of the author of the book and a list of all author's works by series.
The Surfing Scientist. 40 Cool Science tricks — read online for free the complete book (whole text) full work
Below is the text of the book, divided by pages. System saving the place of the last page read, allows you to conveniently read the book "The Surfing Scientist. 40 Cool Science tricks" online for free, without having to search again every time where you left off. Put a bookmark, and you can go to the page where you finished reading at any time.
Font size:
Interval:
Bookmark:
For my favourite brats
Luke, Hannah, Elly, Courtney, Samuel,
Gabriella and Romy.
The question I get asked most frequently is where did I learn my science tricks? Well, scientists always give credit for other peoples work and ideas, so this book should be packed with acknowledgments because I didnt discover or invent any of the tricks you will find in it not one! Unfortunately, good science tricks are a lot like good jokes no one ever remembers who came up with them first.
Consequently, we know that Louis Pasteurs breakthrough gave us pasteurised milk, but we have no idea who discovered that you can spear a raw potato with a drinking straw (see page 28 if you want to learn how). We know Sir Isaac Newton discovered the law of universal gravitation, but cant name the person who pioneered the art of lifting a jar of rice with a pencil (see page 42 for instructions). And weve all heard of Albert Einstein but who was the bright spark behind the incredible toothpick star trick (see page 14)? I wish I knew!
I cant name the anonymous people who discovered the forty cool tricks in this book but Im very grateful they did. Instead, Id like to thank all scientists everywhere, for the invaluable work they do. They will give us new medicines, speed up the Internet and guide us towards a sustainable future. So if youre looking for someone you can really admire, forget those celebrity magazines and head to your nearest laboratory! In the meantime, happy experimenting and surfing!
You dont need to stop bathing, dress badly or speak dolphin to be environmentally friendly! The small things we all do really can make a big difference. Here are some tips to remember while experimenting with the tricks in this book.
This nifty trick is also a handy skill to have up your sleeve when you cant find an eye-dropper. And lets face it, how often do you have an eye-dropper in your pocket?
Air pressure combined with the surface tension of water make this trick possible. For water to leak out of a straw, an equal volume of air has to get in. Obviously, no air can get in through the top of the straw when your finger is blocking the way. But water molecules stick together so tightly that air cant squeeze in through the bottom either. This stickiness gives water its remarkable surface tension.
The other reason the water doesnt escape is air pressure. Air exerts pressure on everything in it. We dont usually notice this pressure because it is equal in every direction, including up. This rarely noticed but very hefty air pressure prevents the water pouring out.
But water molecules arent infinitely sticky, so theres a limit to the thickness of straws you can use for this trick. Really fat straws wont work. Beyond their limit, water molecules break apart so air bubbles can sneak in. Then gravity wins and the water comes out.
Pipette literally means little pipe and thats exactly what a drinking straw is. Scientists use high-tech gizmos based on exactly the same principle to add precise amounts of chemicals into experiments. Turning a dial sets the volume of liquid to be transferred. Im not sure what Id use it for, but I want one!
Use your new-found pipetting skills to create cool layers of coloured salt solutions inside a straw.
Adding salt changes the density of water. Density is how much a given volume of a substance weighs. One litre of pure water weighs exactly one kilogram. One litre of seawater weighs about 1.03 kilograms. The extra weight is due to dissolved salts and minerals.
The three solutions you made all have different densities. The saltier solutions are more dense so the less salty solutions float on them. By dipping the straw in unsalted water first, then the saltier solutions, you get three distinct layers. Its amazing how little mixing there is between the layers. But try doing it in reverse order and youll get lots of mixing and no distinct layers.
The salinity (saltiness) of seawater varies quite a lot around the world. On average, there is about 35 grams of salt in every litre of seawater. Rain doesnt contain salt, so rainwater decreases salinity near the surface. Evaporation increases salinity, which can make the surface water slowly sink.
To complicate matters, cold water is more dense than warmer water so it sinks too. These variations in salinity and temperature generate huge but very slow ocean currents around the world. Scientists call this the thermohaline circulation which is vitally important to the Earths climate and sea life.
This trick will make you a star literally! Use the Straw Pipette trick on page 10 to add the water if you dont have an eye-dropper. It works using matchsticks too.
Youve probably figured out how this works, but just in case, heres a hint. What happens to wood when it gets wet? Thats right, it swells! And thats whats going on here.
As the tiny bit of wood holding the two halves of a snapped toothpick together swells, the V shape opens up. Try it with just one toothpick and youll see this clearly.
By arranging them in a neat circle, the tips of each toothpick collide with those of its neighbours. Once all the tips are touching, the star opens up like a flower. Cool!
The same phenomenon can cause old doors to swell and jam when the humidity rises. As soon as dry weather returns, the door opens freely again. Its a bit like the roof that only leaks when its raining.
If you learn to pipette water using a straw (see trick 1), you can do this trick in almost any restaurant. Who knows, you might impress the waiter enough to score a free dessert yum!
Did you know that the first toothpick manufacturing machine was patented in 1872 by Silas Noble and J P Cooley of Massachusetts in the USA? What a coincidence neither did I!
This trick doesnt make any noise but show a friend and youll hear the ooooh sound of amazement in their voice. Youll need fresh water each time so have a bucket handy.
Detergent molecules are amazing little things. Theyre way too small to see but scientists have figured out that they have two very distinct ends, called the head and tail. Their heads are strongly attracted to water but their tails strongly repel it. As a result, they prefer being on the surface with their heads in the water and their tails sticking out.
Font size:
Interval:
Bookmark:
Similar books «The Surfing Scientist. 40 Cool Science tricks»
Look at similar books to The Surfing Scientist. 40 Cool Science tricks. We have selected literature similar in name and meaning in the hope of providing readers with more options to find new, interesting, not yet read works.
Discussion, reviews of the book The Surfing Scientist. 40 Cool Science tricks and just readers' own opinions. Leave your comments, write what you think about the work, its meaning or the main characters. Specify what exactly you liked and what you didn't like, and why you think so.