It's Electric!
Name one object that requires electricity to work.
Answers may vary.
What is friction?
(Give an example for an extra 50 points)
Friction is a force that holds back the movement of a sliding object.
(Answers may vary.)
You take a big jump up in the air. What force causes you to be pulled back toward Earth?
Gravity
Name the state of matter of each.
water vapor:
prune juice:
lego:
water vapor: gas
prune juice: liquid
lego: solid
Something that your senses tell you about an object is an ______________________.
Observation
A magnet
There is a sand dune outside your house. If you let go of your toy car at the top of the sand dune, your toy car will most likely roll:
a. slow
b. fast
c. regular speed
a. slow because of friction sand gives!
What side of another magnet is attracted to the south side?
North
What kind of change occurs (physical or chemical) when you crack an egg and fry it on the stove to make scrambled eggs?
Chemical
You're stirring a pot of boiling noodles with a metal spoon and your hand gets hot and starts to burn!! What is going on?!
The metal spoon conducts heat very well, so it became hot soon after you put it in the boiling pot.
Which material is the best conductor of electricity?
a. metal
b. wood
c. plastic
d. ceramic
Metal is the best conductor of electricity (and heat).
What energy transformation occurs when Ms. Tracy hits a drum as hard as she can with a drumstick?
Mechanical --> Sound
What would happen if you put two north sides together.
The magnets would repel.
What type of change occurs when Ms. Tracy breaks off a piece of chocolate bar and puts it in the microwave to create melted chocolate?
Physical.
Melted chocolate is still chocolate! It can always turn back to solid.
Ruler, meter stick, yard stick, tape measure, etc.
Name two safety rules to follow when around electricity.
Answers may vary.
A push or pull is called a _________.
a. motor
b. force.
c. gravity
d. magnet
A push or pull is called a FORCE.
What would happen if a north end of one magnet and a south end of another magnet were placed next to each other?
The magnets would attract.
Ms. Tracy weighs two objects on a scale. On one side, she puts three text books. On the other side, she puts a dry erase marker. Which side of the scale will be lower?
The side with the books will be lower because they are heavier than one dry erase marker.
Anything that can do work needs and has ________.
a. life
b. heat
c. power
d. energy
Energy
What object placed at X would complete the circuit and light the bulb?
(See Ms. Tracy's amazing artwork on the board.)
You need a battery!
What time should you go to bed in order to have the most energy the following day?
Answers may vary, but NO later than 9pm.
What country is north of the United States?
Canada
You walk outside on a snowy and let a breath out. What do you see? What form of matter?
You see the water vapor from your breath - gas accepted/vapor
What property of matter would you use a thermometer to measure?
Temperature