Elect&Mag Prim Sci
Elect&Mag Prim Sci
ByFabienne Brochier, Mike Diprose, Nabeel Nasser, Sheila Stratford
Edition 1st Edition
First Published 1998
eBook Published 6 August 2012
Pub. location London
Pages 110 pages
eBook ISBN 9780203179161
Brochier, F., Diprose, M., Nasser, N., Stratford, S. (1998). Elect&Mag Prim Sci. London: Routledge, https://doi.org/10.4324/9780203179161
First published in 2004. Routledge is an imprint of Taylor & Francis, an informa company.
TABLE OF CONTENTS
paper clips. Write the name of the magnet. 2. Write down how many paper clips you think it will attract. 3. Put each magnet into the box of paper clips and
disc magnet, photocopy of figures on card. How to make the puppets: • Cut out the figures and support tabs, or draw your own figures onto card.
ByWhat you need: scissors, paper clips, tape, a long stick or ruler, a bar or
Magnetic forces Colour in the poles with red or blue; then fill in the answers with the words attract or repel.
Remember blue is for the south pole, red is for the north pole
Test which materials magnetism can pass through! Materials Prediction – Result – magnetism magnetism will pass through passed through paper wood plastic card cloth leather foil steel • Does the size of the magnet make a difference? Does the thickness of the material make a difference?
Making magnets Fill in the blanks. These words will help you. make, solenoid, iron, direction, steel, strong, domains, stroked, magnet _ magnets is to put iron
A magnet can be made by stroking a piece of or steel with a _. It is important to stroke it in the same Inside each piece of iron and . there are
How to make a simple electromagnet 1 Gather together the following items: an iron or steel nail, 50 cm length of wire lead, a4.5V battery, paper clips. 2 Wind the lead around the nail at least 20 times. 3 Connect the ends of the lead to the battery terminals. 4 Try to pick up paper clips with your electromagnet. How can you make your magnet stronger? Try winding more coils of lead around the nail. BE CAREFUL - YOUR ELECTROMAGNET CAN GET HOT!
How to make a simple compass You will need: a needle, a small rectangle of polystyrene or cork, a magnet, a real compass, a square of paper marked with the points of the compass at each corner, a small bowl or round carton filled with water. 1 Using a compass find where north is in the classroom; place the square of paper so the north is pointing in the true direction. 2 Magnetise the needle by stroking it with a magnet 20 times in the same direction. 3 Place the needle on the polystyrene in the bowl of water so that it can float freely. When it stops moving, you will see that the needle points north. 4 Check your compass points in the same direction as the class compass.
Testing materials to see if they are good conductors of electricity What you need: a small bulb, a bulb holder, a battery, three
lengths of wire with crocodile clips at the ends, five small objects each made of a different material, a record sheet. What to do • Make a simpler circuit like the one in the drawing so that the bulb lights up.