71+10 New Science Activities E-Book

• Herausgeber: V&S Publishers
• Kategorie: Wissenschaft und neue Technologien
• Sprache: Englisch
• Veröffentlichungsjahr: 2018

Seitenzahl: 79

Beschreibung

An interactive approach to learning science

Leseprobe

71+10 New

Science

Activities

Published by:

F-2/16, Ansari Road, Daryaganj, New Delhi-110002 011-23240026, 011-23240027 • Fax: [phone] Email: [email protected] • Website: www.vspublishers.com

Regional Office : Hydrabad5-1-707/1, Brij Bhawan(Beside Central Bank of India Lane) Bank StreetKoti, Hyderabad - 500 095011-23240026, 011-23240027 • Fax: [phone] Email: [email protected]

Branch Office : MumbaiJaywant Industrial Estate, 1st Floor - 108,Tardeo Road Opposite Sobo Central Mall,Mumbai - 400 034011-23240026, 011-23240027 • Fax: [phone]Email: [email protected]

Follow us on :       

© Copyright: ISBN 978-93-505740-1-0

DISCLAIMER

While every attempt has been made to provide accurate and timely information in this book, neither the author nor the publisher assumes any responsibility for errors, unintended omissions or commissions detected therein. The author and publisher make no representation or warranty with respect to the comprehensiveness or completeness of the contents provided.

All matters included have been simplified under professional guidance for general information only without any warranty for applicability on an individual. Any mention of an organization or a website in the book by way of citation or as a source of additional information doesn't imply the endorsement of the content either by the author or the publisher. It is possible that websites cited may have changed or removed between the time of editing and publishing the book.

Results from using the expert opinion in this book will be totally dependent on individual circumstances and factors beyond the control of the author and the publisher.

It makes sense to elicit advice from well informed sources before implementing the ideas given in the book. The reader assumes full responsibility for the consequences arising out from reading this book. For proper guidance, it is advisable to read the book under the watchful eyes of parents/guardian. The purchaser of this book assumes all responsibility for the use of given materials and information. The copyright of the entire content of this book rests with the author/publisher. Any infringement / transmission of the cover design, text or illustrations, in any form, by any means, by any entity will invite legal action and be responsible for consequences thereon.

Publisher’s Note

In line with a number of books and best-sellers in Science for children, particularly the school students, V&S Publishers have now come up with the following two, absolutely new and thrilling books on Science Projects, namely 71+10 New Science Projects Junior and 71+10 Science Activities.

In the book, 71+10 Science Activities , the author has explained the simple laws and principles of Science, such as: Air Force, Pressure, Weight, Emulsification, Osmosis, Gravity and Motion, Rotation, Resisting Motion, Stored Energy, Vibrations, Good and Bad Conductors of Electricity, Experiments with Magnets, Light and Sound for children, and projected them in a very simple and lucid language for the readers-- particularly the school kids who can easily perform these activities at home or school , of course with the help and guidance of their parents, elders or teachers.

Basically, the main idea behind publishing such books are that they are educative, informative as well as interesting and full of fun. Children of all ages, particularly from 6 to 13 can perform these fun-filled activities and learn as well - the basic principles of Science easily and quickly. Moreover, as we are all aware of the fact that Science cannot be understood properly and learnt theoretically without practical demonstrations or experiments - in order to test and prove the different scientific laws and theories.

Therefore, this book will enable all its readers, especially the young ones to learn as well enjoy performing all the 81 fascinating Science Activities listed in the book, each explaining or proving some scientific theory or law - making it really worth reading!

Contents

Publisher’s Note

Air Force

Air Pressure Difference

Keeping it Aloft

Difference in Weight

Whirling Air

Barrier to Moisture

Emulsification

Osmosis

Puffs of Air

Streams of Water

Flattening the Hole

Wetting Agent

Upside Down

Continuous Process

Balloon Lift

Low Pressure

Soft Banana

Slight Motion

Eyedropper

Large Body of Water

Dew and Frost

Forwarding Boat

Tiny Crystals

Weaker Point

Can Rotation

‘S’-Shaped Curve

Resisting Motion

Good Conductor

Stored Energy

Gravity and Motion

Vibrations

Rolling Motion

Slippery Walls

Raindrop and Hamburger

A Flagpole

Salt Water & fresh Water

The Earth’s Surface

Straightened Toothpick

Electronic Attraction

Comb Your Hair

Charged Particles

Particles Accumulation

Imaginary Lines

Sandy Settlement

Oblate Spheroid

Mobius Strip

Unusual Catsup Bottle

Coin to Coin

Magnetic Field

Salt, Pepper and Water

Rust Formation

Lost Liquid

Acid and Alkali

Orderly Designs

Switching Places

How to make a Soap?

Big Juicy Bite

Fibrous Network

Gummy Gluten

Water Matter

No Entry

Water Droplets

Hole in the Seed

Geotropism

Green Matter

Leaf Skeleton

Microscopic Plants

Cell Multiplication

Berlese Separator

Piece of Artwork

Metamorphosis

10 Projects in Colour

1.    Hot Air

2.    Pleasant Quality

3.    The Force of a Push

4.    The Force of Gravity

5.    Strength of an Arch

6.    Ball Bearings

7.    A Set of Gears

8.    Sand Clock

9.    Coloured Dots

10.  Designer Eyes

1 Air Force

Things Required:

Sheet of paper

Directions:

Do you know a fast way to stick a piece of paper to your hand without using any glue or tape? Would you believe that air will do the job? Well, it will! Just follow the steps below.

1. Hold your arm straight at your side. Turn your hand so that the palm faces forward.

2. Press a flat sheet of paper to your palm, using your other hand. Now start running as fast as you can and take away the helping hand. The paper will stay in place as you run.

Explanation:

Even though you can’t see air, it is a substance, just like anything else, and it exerts a force against objects. When you ran with the paper, you created a force pushing against the air. The air pushed back against the paper and held it in place against your hand. Hence, we conclude that air too, has and exerts force.

2 Air Pressure Difference

Things Required:

A sheet of typing paper

Directions:

1. Hold an 21 x 28 cm sheet of typing paper high above your head. Use both hands to grasp the paper. Let go. The paper will scoot in various directions and probably turn over.

2. Now make two folds in the long side of the paper, first, 2.5 cm inward, then, 2.5 cm again.

3. Hold the paper over your head, but make sure that the folded edge is at the front, and on the underside, of the sheet. Gently push the paper as you release your grip. The paper will not turn over and will glide for some distance before falling to the ground.

Explanation:

As the plain sheet of paper falls, the force of the rushing air over it causes differences in air pressure over different parts of the paper. The front end tilts up, and the paper may move in a topsy-turvy fashion. However, by folding the edge, you increase the weight, that is at the front, and this weight balances the upward force of air, causing the paper to glide smoothly without flipping over. The Airplane wings are also shaped like this - they are a little bit heavier in front than they are in the rear - which helps to make the ride a smooth one.

3 Keeping it Aloft

Things Required:

2 sheets of paper

Pencil

Ruler

Scissors

Directions:

1. With a pencil and ruler, draw two rectangles that measure 30 by 15 cm on an ordinary note or paper and cut them out.

2. Now, make a cut lengthwise on each piece of paper as if you were cutting them in half, but do not cut all the way through. Make each cut only 15 cm long.

3. On both pieces of paper, fold one of these flaps one way, and the other in the opposite direction.

4. On one piece, make continuous 2.5 cm folds along the uncut side. On the other piece, fold the uncut side into a triangle, and then fold it again into another triangle.

5. Stand on a chair or bench. Drop your two creations to the ground. They will twirl and spin gracefully like two ‘ballerina sisters’.

Explanation:

You are using the same principle to operate your spinners that helicopters use to fly. The folded end of the paper is a little heavier than the rest of the piece, and this weight keeps the end always pointing downwards. The rotating paper wings fall against a greater amount of air than if they did not rotate. This decreases the speed at which the device drops, keeping it aloft for a longer period of time.

4 Difference in Weight

Things Required:

Basketball

Air pump

Scientific scale (one that shows grams or fractions of ounces)

Directions:

1. Pump up a basketball very hard. You can use a bicycle pump if you have the proper needle for inflating sports equipments.

2. Now weigh the basketball on the scientific scale. Your science classroom probably has this type of scale. Ask your teacher to show you how to use it.