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ICE extensions
| 4th GRADE |
CIRCUITS
Key Vocabulary:
Battery
Wire
Closed circuit
Open circuit
Electricity
Bulb
Light
ACTIVITY-TIMELINE
Understand Human’s need for and use of electricity over time. Prepare a timeline for each student. Put the dates in sequential order by placing the correct number between the parentheses.
( ) FLUORESCENT LIGHTS: 1940 A.D.
( ) FIRE: 400,000 B.C.
( ) FLASHLIGHT: 1898 A.D.
( ) SUN
( ) GAS LAMP: 1700 A.D.
( ) ELECTRIC LIGHT BULB: 1880 A.D.
( ) KEROSENE LAMP: 1800 A.D.
( ) TORCH: 6000: B.C.
( ) CANDLE: 1300 A.D.
( ) OIL LAMP: 100 A.D.
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ACTIVITY-WRITING
Research and prepare a presentation about Michael Faraday, Joseph Henry, Thomas Edison, Samuel Morse, Benjamin Franklin or other famous scientists. The teacher should design an information page to collect data for report.
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ACTIVITY-CREATE SIMPLE CIRCUITS
Materials Needed:
1 D-cell battery
2 six inch pieces of wire
1 battery holder
1 bulb socket
2 bulbs
student science journal
Create a basic simple circuit
Brainstorm with the students to find out what previous knowledge they have about electrical currents and circuits.
- Give each pair of students a box with a D-cell battery, 1 6-inch wire, and a bulb. Explore. "How can you make the bulb light?" Draw at least three ways the bulb lit in a science journal. Choose several illustrations to draw on the board.
- Discuss the connection between the meaning of a current and a circuit.
Create a simple circuit
- Pass out another 6-inch wire, a battery holder, and 1 bulb socket. Ask, "Can you make the bulb light?" Explore. Draw several illustrations on the board and in individual science journals. Share and discuss with the class.
- Reinforce the meaning to make clear the distinction between circuit and current.
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VISCOSITY
Key Vocabulary:
Viscosity
Volcanoes
Magma
High pressure
Friction
Temperature
Flow
ACTIVITY - EXPERIMENT AND DISCUSSION
Materials Needed:
one uncarpeted board
one carpeted board
**you can also the floor, one part carpeted and one part uncarpeted
marbles
timer
eye dropper
chop sticks
small closed containers of different viscosity liquids
large containers of different viscosity liquids
**To make the liquids, mix Kyro syrup and water. One should be 100% Kyro syrup, the next should be 75% syrup and 25% water, 50/50, 25/75 and the last 100% water
Discussion:
Discover friction. You are going to release a toy car on a carpeted and uncarpeted surface. You can use boards or the floor of your classroom to show the two speeds. Release the toy car on the uncarpeted board first, then the carpeted board. Ask the students why one is slower. Discuss what happens.
Discover the results of friction: Have students rub their hands together. Discuss what happens (hands warm up). Rub the chop sticks together and touch them to the area below the nose. Discuss what happens. Rub the chop sticks with soap and then together and discuss the speed and ease of rubbing. What happened to the soap? What happens when it heats up? Do the chop sticks move faster? Slower? What happens to the soap as it heats up? (The viscosity is lowering and the chop sticks are easier to rub together. The soap acts as a lubricant.)
Activity:
- Set up five stations for students to rotate through, each with a different liquid to use (as above): 100% Water, 25%, 50%, 75%, 100% Kyro Syrup. Students will time how many drops of liquid comes out of a dropper in ten seconds. Record and discuss the results.
- Students will drop marbles into the large containers of liquids and time how long it takes the marbles to travel to the bottom. Five marbles should be timed and an average time computed. Have students collect data in a table on the board. Discuss each results for each group/container.
Through the step by step discussions, students should begin to realize that viscosity is a measurement of resistance to flow or how thick or thin a liquid is. They may also recognize that when the liquid heats up, the viscosity is lowered, resulting in the explosions and eruptions we see in volcanoes.
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Featuring hands-on activities designed by the Bay Area’s best:
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