7
97% of the world’s water is in oceans. The remaining 3% is fresh water. That 3% of fresh water divides into 77% contained in icecaps and glaciers, 22% in groundwater aquifers (drinking water,) and 1% in lakes and streams.
Question: How can you make an egg float in a bowl of water?
Hypothesis*: *Note: a hypothesis means a thoughtful guess.
a large bowl warm water an egg salt spoon
1. 2.
Fill your bowl with warm water. Gently place the egg in the water. What happens?
1. 2.
Remove the egg and stir at least one cup of salt into the water. Stir until you can’t see any grains of salt. The water will look cloudy. Place the egg in the salty water. What happens?
Did the egg float? Adding salt to water makes it heavier. In salty water, the amount of water the egg displaces weighs more than the egg and the egg floats.
QUESTION PRESSURE PRACTICE SCIENCE SURFACE
Find the words by looking up, down, backwards, forwards, sideways, and diagonally.
Quick! Before it melts! Solve the puzzle frozen in my ice cubes and you will have good luck! Fill in the blank squares with numbers to make the sum of each side and each diagonal add up to 15.
K P R E
M G C
E E I I L I U C C
H C G E R A E
T A S G G E S T R
M F E C A R
T R D T I A I A O
R U I A O E
I S H L E D N P L
C A
MAGIC FLOAT WATER TRICK TRACE SALT BOWL HIDE HEAD EGG
F S M H I
T C N Q E K
S S
U R E
T C B
O R W
I I
C T
Standards Link: Letter sequencing. Recognize identical words. Skim and scan reading. Recall spelling patterns.
Standards Link: Mathematics: Number Sense: Adding sums to 15.
© Vicki Whiting May 2026
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