A physical progperty could be which of the following items?
Cutting a log into boards is what kind of change?
Our car engines burn gasoline and this is what kind of change?
Wooden Logs burning in a camp fire shows what type of chemical property?
The milk became very sour and now has lumps in it. What kind of change has occured?
We are able to make aluminum foil becaue of what physical property?
Copper can be pounded into a very thin sheet-in other words, this metal is very malleable which is what kind of property?
Physical property of metal
Which of these are physical properites? odor, texture, reactivity with water, density, solubility, dissolving
odor, texture, density, solubility, dissolving
What are two physical properties of the aluminum can of Coca Cola?
malleability and high luster (metallic)
Explain why the can does not show chemical properties:
It must react with another substance/They are "invisible"
Melt the chocolate before adding it to a mixture. Melting is what kind of change?
You drop Alka Seltzer into water. what was the evidence of a chemical reaction?
bubbling and fizzing
If a copper penny reacted with the air and turned green, then what kind of change of?
A chemical change
You mix water with 2 grams of salt. After that you exaporate the water and you will still have how many grams of salt left? What kind of change is it?
2 grams. Physical Change
Water spilled on the hot sidewalk and later it has disappeared because it what?
The temperature suddenly drops to a freezing temperature of ___degrees Celsius.
0 degrees Celcius
The amount of spake taken up by an object is known as the object's: weight, volume or mass?
We call something more "dense" when a substance has more ___ for a given of volume.
If water has a density of 1 g/ml, then which item will float in water: a diet soda with a density of .75 g/lml or a regular soda with a density of 1.03 g/ml
A diet soda with a density of .75 g/ml
Which of these things is not matter? hair, a cloud, or heat?
Write an example of something that is viscous (or slow & thick when it flows)
A marble takes up a small amount of space, in other words, the marble has a small ______
Matter changes into the following most familiar states of matter: ____, ____, ____, & plasma.
solid, liquid, gas
A piece of wood has a density of .5 g/ml. The wood will ____ the container and take on the ____ of the container. The gas has no definite ____ or ____.
float, fill, shape, volume or shape
To make liquid tea change its state of matter, we could boil the tea and change a liquid to a ____
Pump gas into a plastic box and put the lid on it. The gas will ____the container and take on the ____of the container. The gas has no definite ____or ____.
fill, shape. volume, shape
You know that a chemical reaction has occurred when two chemicals combines and a ____ substance formed.
We can boil water at ____degrees Celsius.
Matter must bave ____and take up____.
A substance would be in which sate of matter to be the most affected when removed from its container? A____.
Measure the water in a graduated cylinder. Then add a marble. The barble will ____the water. Re-measure the water in the graduated cylinder & subtract the old measurement. Now you know the ____of the marble.
The volume of a regular solid object such as a large, square, block was 1000 (what is the correct number of units?) 1000mL2 1000mL3 or 1000cm2
A substance which has a definite volume, but not a definite shape is a ____
By sharpening pencils and leaving the shavings, you create a ____ change?
In what state of matter do molecules have a fixed position and are vibrating>
____ occurs when you remove heat from a gas and it becomes a liquid.
A bicycle left in the rain forms a brown substance on it due to oxidation. This is a ______ ________. (what kind of change?)
____is the amount of space taken up by an object.
Add heat to a solid chocolate bar and it starts turning into a liquid. The solid is ____.
Pour very cold milk into a glass. The warm kitchen air creates liquid droplets on the outside of the glass. when heat is removed from a gas and it turns into liquid droplets, the gas is ____. Circle one: freezing, condensing, boiling