UNIT 10

UNIT 10

1. FORCES

   • WE CAN MOVE THINGS BY PUSHING AND PULLING
     • FORWARDS BACKWARDS SIDEWAYS AND CHANGE DIRECTION
   • WE PUSH THINGS AWAY AND WE PULL THINGS TOWARDS US

2. LIGHT SOURCES

   • THE SUN GIVES US LIGHT IN THE DAY
   • AT NIGHT WE USE TORCHES, LAMPS, CANDLES
   • A SHADOW IS FORMED WHEN AN OPAQUE OBJECT BLOCKS THE LIGHT

3. SOUND SOURCES

   • SOME SOUNDS GIVE US INFORMATION: A RADIO, A PHONE, THE TV
   • SOME SOUNDS GIVE US WARNING: AN AMBULANCE, A FIRE ALARM
   • SOUNDS ARE LOUDER NEARER TO THE SOURCE