Some Pressure Tricks!

In the wintertime, Maya’s dog falls through the ice into a pond. She is just

about to run across the ice when she remembers that she is

........................ than he is. She would fall through the ice too. She goes

to get a ladder from her garden shed. She knows that even though she

and the ladder weigh a lot, if she spreads the ..................... out over a

wide ................ , the .............................. will be less, and the ice might

hold. It works, and she saves her dog.

weight force area heavier sharp

pressure

Raj can lie on a bed of nails. Everyone thinks he’s a superman, but Raj’s

secret is that science helps him to do the trick. If he lay on just one nail,

his weight would drive it into him, ouch! But

if he spreads the downward

............................ of his body over a wide

................. containing lots of nails, he won’t

get hurt, because the

............................................ on each nail is

so much less. (He makes sure the nails

aren’t too ........................ , too!)

Use these words!

Use these words!