Simple Circuits

Grade 4 Science Worksheet - Challenge Me

Circle the answer.

1. 1.

   Which group lists only conductors?

   • wood, plastic, glass
   • copper, rubber, steel
   • copper, steel, aluminum
   • aluminum, cloth, rubber
2. 2.

   A student puts a wooden craft stick across the gap in a circuit. The bulb stays dark. She says the battery is dead. What should she test first?

   • a new bulb with the stick
   • a second wooden stick
   • a longer wooden stick
   • a metal object in the gap
3. 3.

   This circuit has a closed switch and works. What does the buzzer give off?

   • electrical energy back to the battery
   • sound energy
   • light energy
   • motion energy only
4. 4.

   A hair dryer blows warm air. What does it change electrical energy into?

   • motion only
   • heat only
   • light and sound only
   • heat and motion
5. 5.

   Why does the wire in a circuit get warm when current flows for a long time?

   • some electrical energy changes to heat in the wire
   • cold energy slowly leaves the wire
   • the wire stores light energy inside it
   • the wire makes new energy of its own