Conductors and Insulators
Measuring
States of matter/ mixtures/ solutions/ didn't fit in the other categories
Force and Motion
Flow of Energy
100
Copper, Salt Water, and Aluminum are all examples of _______.
Conductors
100
The 5th grade classes are launching rockets. They take a rocket from each class to compare. The rockets are the same size and shape. Each rocket has a different mass. They launch each rocket from the same height with the same amount of force. What are they testing?
How mass affects the height of the flight
100
Will adding cold or hot water to a mixture, dissolve a substance slower?
Cold! Hot water would speed up the process
100
Which item requires the most force to move? A shoebox that has a mass of 2 kg or a refrigerator box with a mass of 27 kg?
Refrigerator box, because it has more mass.
100
How is energy transformed when the switch is closed?
Electrical energy becomes light energy. The switch needs to be closed in order for electricity to flow!
200
Plastic, Glass, and Rubber are all examples of _______.
Insulators
200
A graduated cylinder is filled with water to the 3 ml mark. A red marble is added and the water mark raises to 5 ml. The red marble is removed and a blue marble is added bringing the water to 6ml. What can we infer?
2 ml red marble, 3ml blue marble. Blue marble has more volume!
200
What is a sign that a chemical change has occurred?
There may be bubbles/ fizzing
200
For motion to occur, forces must be unbalanced. Which of the following may occur if forces are balanced?
The object stays still
200
Which of the following would not demonstrate a change caused by energy?
-Throwing a ball to first base
-Watching a ball down a lane
-Holding a baseball in your glove
-Hitting a tennis ball with a racket
-Watching a ball down a lane
-Holding a baseball in your glove
300
Is a wooden spoon a conductor of electricity?
NO! It is an insulator.
300
What is most likely being tested here?
Volume
300
When liquid begins to boil, it changes how?
A physical change from liquid to vapor
300
True or False: As friction increases, items are require more force to move.
True
300
If two balloons are both negatively charged...what will most likely happen?
The will repel each other
400
Which would not allow electricity to flow freely?
Eraser, Iron Nail, Aluminum, Copper wire
Eraser. It is an INSULATOR
400
What action will speed up a dissolving process?
Crushing the item being dissolved
400
How might you separate salt and sand?
Use water to dissolve and mix with the salt, leaving the sand to settle at the bottom. *Sand does not dissolve in water*
400
A block and a book are placed on a ramp. They both slide down the ramp but at different speeds. What two factors are acting on the block and the book as they slide?
Friction and Gravity
400
What type of energy is stored in both a plant and a battery?
Chemical energy
500
True or false: Saltwater is a conductor of electricity?
True! Saltwater is a conductor of energy because when salt (like sodium chloride) dissolves in water, it breaks apart into positively and negatively charged ions which are free to move around, allowing electricity to flow through the solution by carrying electrical charges
500
What type of energy is being used in this picture?
Mechanical! This is called a mortar and pestle tool.
500
Quinny heard there might be iron fillings in her cereal. How might she find them if they are in there?
Use a magnet
500
Mrs. Mills hung art projects from rubber bands on a curtain rod in her classroom. Sonny's project was at 2 cm, Cydney's project at 3 cm, and Rogers was at 7 cm. Whose project was pulling with the most force?
Rogers, 7cm. *Think about the slingshot eraser experiment*
500
Alicia combs her hair with a plasic comb. Moving the comb through her hair causes it to become electronically charged. If she holds it near an uncharged piece of paper, what might happen?
The comb will attract the paper (static electricity)