3rd Grade Science - Energy and Magnetism Questions

These girls can hear each other because the string —
(2007 test question)
1. vibrates
2. stretches
3. is strong
4. is long
A kazoo is a toy that makes a sound when a person hums into it. Sound comes out of the kazoo because it
(2008 test question)
1. is shiny
2. can float
3. is plastic
4. can vibrate
A metal rod is struck and starts to vibrate. Which of these could happen next?
(2009 test question)
1. The metal rod becomes a liquid.
2. The metal rod becomes heavier.
3. The metal rod attracts other metals.
4. The metal rod produces sound.
Which diagram shows a back-and-forth motion?
(2007 test question)
Which part of a bicycle BEST moves in a circle?
(2010 test question)
1. Seat
2. Frame
3. Foot pedal
4. Kickstand
Which picture shows the way that two magnets will attract?
(2007 test question)
Which of these is the BEST title for the group of objects shown?
(2010 test question)
1. Heavy Objects
2. Rough Objects
3. Wooden Objects
4. Magnetic Objects
Which of these is the BEST title for the picture?
(2008 test question)
1. How Magnets Attract
2. Using the Sense of Touch
3. How to Measure Distance
4. Using a Magnetic Compass
While a sailor was out fishing, he got lost at sea. Which object would help him direct the boat back to shore?
(2008 test question)
1. Rope
2. Magnetic compass
3. Blanket
4. Measuring tape
What makes the needle on the compass in the picture point north?
(2007 test question)
1. Rainfall
2. Evaporation
3. Wind currents
4. Magnetism