DATE
11 /
12
/ 14
Directions:
1.
Write in table of contents.
OBS # 28
SINKING AND FLOATING
2.
3.
Paste into journal on page 60.
Write title and date at top of page.
4.
Follow direction on right side of each section below.
Record all data in table.
!
SOLIDS FLOATING/SINKING IN WATER
Substance
Prediction
(float or sink)
Density
(g/cm3)
RESULTS
(float or sink)
Water
X
1 g/cm3
X
Wax
0.96 g/cm3
White Plastic
0.98 g/cm3
Acrylic
1.2 g/cm3
and date. Paste in journal.
t will sink or float
in water.
Copper
predict
whether the object will sink or float in water.
e conlusion.
st column. Then answer
Nylon the conlusion.
B) Record the results in
the last column.
float = wax, white plastic,
sesame seeds
8.9 g/cm3
sink = acrylic, copper,
nylon
1.1 g/cm3
oil
nct layers.
water
0.6 g/cm3
Observations: The liquids form !
ANALYZE
AND layers.
CONCLUDE
distinct
oil
Describe the relationship between density of an object
water
and floating/sinking
in water.
corn syrup
corn syrup
wer
! draw this then answer
LIQUIDS FLOATING/SINKING IN WATER
Since water, corn syrup and oil will not mix together
will be placed in the water)
they are
and will form layers.
RESULTS
1. Predict the order
(float or
of sink)
the layers.
2. THE RESULTS !!
X
TOP
TOP
MIDDLE
MIDDLE
BOTTOM
BOTTOM
/sinking in water.
A) In the 2nd column of
table predict
whether the object
will sink or float in
water.
C) Conclusion:
opper, nylon Sesame Seeds
The
liquids form !
!
(Each object will be placed in the water)
Substance
Density (g/mL)
Water
1.0 g/mL
Corn Syrup
1.4 g/mL
Oil
0.94 g/mL
ANALYZE AND CONCLUDE
What is the relationship between density of
a liquid and its position in a density column?
Objects with a density
greater than 1 will
sink in water. Objects
with a density less
than 1 will float in
water.
1) Water, corn syrup
and oil are poured in
a column and mixed
together. Since they
are immiscible they
form layers. Predict
the order of the
layers and write
them in the picture.
2) DRAW RESULTS
oil
water
corn syrup
3) Conclusion:
The least dense
liquid is on top and
the most dense
liquid is on the
bottom.