Jeopardy
Density &
It’s All Matter Buoyancy
Experiments
Conduction
More
Experiments
$100
$100
$100
$100
$100
$200
$200
$200
$200
$200
$300
$300
$300
$300
$300
$400
$400
$400
$400
$400
$500
$500
$500
$500
$500
$100
What does
indicate?
solid liquid gas
An increase in mass.
Back
$200
What needs to be added to
cause an ice cube to change into
steam?
Heat
Back
$300
Water freezing into ice is an
example of …?
A liquid becoming a solid.
Back
$400
A student most likely using a
glass of water and a lamp
would be making a model of
…
evaporation
Back
$500
A student designs an
investigation to find out if an ice
cube melts faster in hot or cold
water would need what tools?
Thermometers, beakers,
and timing device
Back
$100
Why does a duck float while a
rock sinks in water?
The rock has a greater
density than the duck.
Back
$200
An ice cube floats in water
because the …
Solid state of water is less
dense than the liquid state of
water.
Back
$300
A teacher puts two tablets in a
glass of water. The teacher stirs
the water with a spoon until the
tablets start to bubble.
Which is less dense than the
water?
The bubbles
Back
$400
Students place four objects in
water to see if they float. Their
results are shown in the table.
Item
Floats in
Water?
Key
No
Eraser
Yes
Magnet
No
Cork
yes
The cork is less
dense than the
magnet.
What is the
BEST
conclusion to
draw from
these results?
Back
$500
A student predicts that water will
float on top of oil because oil
looks thicker than water. After
testing, this hypothesis will most
likely be proven …?
False, because water is
denser than oil.
Back
$100
A student is melting a crayon for
an art project. In order to be safe
and prevent burns, the student
chose a pot with a handle made
of …
Wood, because it is not a
good conductor of heat.
Back
$200
A student blows up a balloon and
ties it shut. Explain how it will
look after being warmed over a
light bulb for 10 minutes.
It will expand all around.
Back
$300
A student filled four different bowls
with 10 ice cubes in each. Each bowl
was the same size and shape. The
student timed how long it took all the
ice cubes in each bowl to melt.
Based on the data, what should the
Cup
What the
Time to student conclude?
bowl is
melt
made of
(minutes)
1
Metal
10
2
Plastic
12
3
Clay
20
4
Glass
16
The metal bowl is
the best
conductor.
Back
$400
Material Magnetic? Conducts Transparent?
tested
electricity?
Salt water
No
Yes
Yes
Paperclip
Yes
Yes
No
Nail
Yes
Yes
No
Bolt
Yes
Yes
no
You work with a lab partner to collect the data
above. Your lab partner explains “Solids, liquids,
and gases can conduct electricity.” Your data
does not support your lab partner’s statement
because …
Gases were not tested.
Back
$500
What does this diagram
show?
A liquid.
Back
$100
Students watched a teacher make fudge.
All the ingredients were combined in a
saucepan over the stove. Then, the
teacher poured the chocolate mixture into
a pan. A few hours later, the teacher cut
the fudge into squares that the students
could pick up and eat. Why was the fudge
no longer a liquid?
The fudge became a solid
as it cooled.
Back
$200
A pan of saltwater boils on the
stove long enough so that only
the salt remains. The water …
Evaporated as water vapor.
Back
$300 The 4th graders at Hughes
Elementary conducted an
experimenting the effects of
liquids on the melting rate of ice.
What conclusion can you draw?
Liquid
Trial 1 time Trial 2 time
Salt water
1:45
1:58
Lemonade
2:03
1:43
Kool-Aid
2:04
1:52
Soda
0:59
3:42
The results are unreliable;
more trials are needed.
Back
$400 Students try to float a red plastic
ball and a green plastic ball in three
different liquids. List liquids from
most dense to least dense.
Ball Color
Water
Red
Green
Float
Sink
Cooking
oil
Sink
Sink
Glycerin, water, cooking
oil
Glycerin
Float
Float
Back
$500
Each popcorn kernel contains
a small amount of water in a
soft starchy center surrounded
by a hull. The hull is tough and
hard to break. What happens
when popcorn kernels are
heated above 100°C?
The water turns to steam, creating pressure within
the hull, which allows the starch to expand and
explode.
POP!!!!
Back
$100
A student applies a pat of butter
to a piece of hot toast, the butter
melts. The changes in the state
of matter of the butter is …
Solid
liquid
Back
$200 Students formed three liquid
layers in a glass. Then they
dropped three different objects
into the liquid. The students
observed an item floating on
each of the liquids. From this,
students call tell which objects …
Is the most dense
Back
$300
A sample of water and sediment
is taken from a river. The sand
and pebbles are allowed to settle
for three hours. What explains
why the pebbles are below the
sand, which is below the water?
Pebbles are more dense
than sand or water.
Back
$400A student has four bars of soap.
The student wants to test
whether each bar will float in
water. The student fills a sink with
water. What is a good reason for
placing all the bars of soap in the
sink at once?
Each bar of soap will be tested
in the same water.
Back
$500
Why is orange juice a liquid
and not a solid?
It takes the shape of its
container.
Back