24 HOUR SCIENCE PROJECTS
Five Complete Science Project Guides!
$
14.95
- FIVE COMPLETE PROJECTS
- UNDERCOVER SNEEZE
Does covering the mouth really help prevent the spread of germs?
A SLICE OF ICE
Does the shape of ice affect melting time?
A STRAIGHT FLUSH
Which toilet tissue is most biodegradable?
A PINCH OF SALT
How does salt affect the boiling point of water?
VITAMIN “C”ITRUS
Which citrus fruit has the most Vitamin C?
24 HOUR SCIENCE BONUS
All Five 24 Hour Guides
Plus Five More!
Plus Five More!
$
24.95
- BONUS PROJECTS
- SLIP SLIDING? NO WAY!
Use toy cars to find out about friction!
EGG-XPERIMENTING!
Take the shell off an egg without boiling, and find out if water will go through the membrane.
DON’T LOSE YOUR COOL
Which type of insulation works best?
HEAR, HEAR
Are two ears better than one?
A FLAKY SHOWDOWN
Which brand cereal stays crunchy longest?
