Before turning on an electric switch, outlet, or plug in the classroom, you should make sure that....
your hands are dry
Two objects are rubbed together, creating friction. What will likely happen next?
A. Protons will be rubbed from one surface to another.
B. Electrons will be rubbed from one surface to another.
C. The two objects will cool down
B. Electrons will be rubbed from one surface to another.
Alexa left her cup of ice water on the table. When she went back to drink it later, all that was left in her glass was liquid water. Why there was no ice left in Alexa's cup?
The water was warmer than the ice and caused the ice to melt.
Electricity flows easily through a ________
A. Water source
B. Conductor
C. Insulator
B. Conductor
You can make a simple series circuit by connecting a
_______.
a. battery
b. switch
c. Light
d. Wire
e. All of the above
e. All of the above
Which is the outermost layer of the Earth?
crust
A(n) __________ is a material through which electricity does not flow freely.
a. insulator
b. conductor
c. plant
a. insulator
Which of the following lab stations describes students working with mixtures?
Station 1: measuring water using graduated cylinders
Station 2: building towers using wooden blocks of the same size
Station 3: Separating glass marbles and metal paper clips
Station 4: melting ice cubes under a heat lamp
Station 3
When someone claps their hands together, mechanical energy is converted to ____ Energy.
Sound
Electric current is the flow of electric charge. It is measured in _______________.
A. Ohms
B. Amperes
C. Volts
B. Amperes
What is the
A. Melting Point
B. Boiling Point
C. Freezing Point
of water
0 °C - 100 °C - 0 °C