Electricity and Magnetism Science Exploration
Grade 5 Science Adventure Discovering Forces We Can't See
What Do You Already Know?
Have you ever rubbed a balloon on your hair? What happened when you held it near the wall? Why do you think magnets stick to refrigerators? Where do you see electricity in your daily life?
Static Electricity: The Invisible Force
Objects can gain electric charges when rubbed together Like charges push away (repel) Opposite charges pull together (attract) Static electricity makes your hair stand up!
Balloon Experiment Time!
Work in groups of 5 students Rub balloon on hair or clothing for 10 seconds Try to pick up small pieces of paper Record what you observe on your worksheet Discuss: Why does this happen?
Amazing Magnets and Magnetic Fields
Magnets have two poles: North and South Opposite poles attract each other Same poles repel (push away) Magnetic fields are invisible but have real effects Iron and steel are attracted to magnets
Magnetic Field Investigation
Place paper over your bar magnet Sprinkle iron filings on the paper Gently tap the paper and observe the pattern Try bringing two magnets close together Draw what you see in your science journal
Electric Circuits: Making Electricity Flow
A circuit is a path for electricity to flow Electricity needs a complete loop to work Battery provides the electrical energy Wires carry the electricity Light bulb uses electricity to make light
Build Your Own Circuit!
Use your circuit kit: battery, wires, light bulb Connect the wires to make the bulb light up Try disconnecting one wire - what happens? Reconnect and watch the bulb turn on again Record your observations and draw your circuit
Electricity and Magnetism in Our Daily Lives
{"left":"Electric lights in our homes\nRefrigerator magnets hold pictures\nCell phones use electricity\nCompass needles point north using magnetism","right":"Electric cars and buses\nMRI machines use powerful magnets\nLightning is natural electricity\nCredit cards have magnetic strips"}
What Did We Discover Today?
What is static electricity and how do we create it? What happens when we bring two magnets together? What do we need to make an electric circuit work? How do electricity and magnetism help us every day?