________ gives power to light bulbs and phones.
Electricity
Light travels in a _______________ line.
straight
Sound can travels through____________, __________, and ____________.
solid, liquid and gas
The red wire is____________ and the black wire is_________________.
positive, negative
What happens to the light bulbs in a series circuit?
become dimmer
If we have big vibrations, the sound will be_________.
loud
Mirror and glass curtains are examples of light________.
reflectors
Sound is created by __________________.
vibration
We can use the small motor to make the fan______.
spin
What can we use to make a simple electric circuit?
wires, batteries and light bulbs
This is an example of_______________.
paper circuit