Fourth Grade
Worksheets
Boom! Crash! What's That Noise?
It was pouring outside! The rain was pounding on the rooftop. Matt peeked through his blankets and saw a bright flash outside. Then he closed his eyes and tried to sleep. Suddenly he heard a huge boom! What was that noise? Had a tree fallen? Was the roof breaking? Was someone bowling up in the clouds? No, it was just a clap of thunder.
The bright light that Matt saw was lightning. The loud boom that he heard was thunder. Thunder and lightning go hand-in-hand. You can't have thunder without lightning. Lightning is very hot. When a bolt flashes in the sky, it makes the air explode. Thunder is the sound made by the exploding air.
