Scientific Investigations/Experiments | Circuits | Insulators and Conductors | Electricity & Magnets | Grab Bag (Miscellaneous) |
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things that you can actually see with your own eyes
If you are given a picture and asked to make an observation, you must choose the answer that includes only __________________.
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open circuit
A(n) __________________ circuit is an incomplete circuit. It is not functional and does not allow an electrical current to flow.
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conductors
Electrical energy moves easily through materials that are...?
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Iron (steel)
Cobalt Nickel
Magnets attract which three metals?
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electromagnets
__________________ are useful because they can be turned on and off.
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3) Soon, it's going to rain
This is not an observation. It is a prediction.
Which is NOT an observation I could make while looking up at the sky?
1) The sky is blue. 2) A big, dark cloud is moving in. 3) Soon, it's going to rain. |
closed circuit
A(n) __________________ circuit is a complete circuit. It is functional and allows an electrical current to flow.
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insulators
Material like plastic and wood do not conduct electricity well. They are __________________.
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lines of force
The iron filings in this picture show __________________ created by a magnetic field. |
static electricity
If you rub your feet on the carpet, or rub a balloon on a wool sweater, you may create...?
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Soil
In an experiment to measure how different types of soil affect tulip growth, you fill five identical pots with different types of soil and place a tulip bulb in each. The variable in the experiment is the __________________.
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a closed circuit
Which will light a bulb, an open or closed curcuit?
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Insulator
Rubber: Insulator or Conductor? |
electricity
Magnetism and __________________ are very closely related.
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Thomas Edison
Who invented the light bulb?
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Constants
From the previous question, the pots, tulip bulbs, water, and amount of sunlight should be the same for all of the pots. These are the __________________.
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series circuit
If your strig of holiday lights goes dark when one little bulb burns out, the string of lights is a __________________.
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Conductor
Copper: Insulator or Conductor?
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electric current
An electric current creates a magnetic field, and a magnetic field creates a(n) __________________.
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electrons
Static electricity occurs when negatively charged __________________ are rubbed off of one curface and onto another.
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The 4th trial (15cm), because it is different from the others.
For accurracy, you perform the experiment many times. In the first three trials, the tulip in sandy soil grows only 10cm tall before dying. The 4th trial, the tulip grows 15cm tall and flowers. Which result is unusual?
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parallel circuit
This circuit has more than one pathway for the flow of electrical current. If one bulb burns, the others will remain lit. It is a __________________.
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metal (often copper)
Wires are usually made from __________________ because it conducts electricity well.
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Electromagnet
If you wrap a wire around a nail and run electricity through the wire, you have created a(n) __________________. |
Experiment
Which step is missing from this flow chart, showing the order of scientific investigation? |