States of Matter
What are the three states of matter?
Solid, liquid, and gas
Is butter melting a physical change or chemical reaction?
Physical change
In the scientific process, why is asking a question important?
It allows scientists to figure out exactly what they are trying to find out.
Name an example of a property.
Color, mass, shape, state of matter, temperature, texture, volume
What is matter?
Everything that has mass and takes up space.
Atoms
Is rusting of a can of paint a physical change or chemical change?
Chemical change
What do scientists do after forming a question?
Research their question
Is the shape of an object an observable or measurable property?
Observable
What is mass?
A measure of the amount of matter that makes up an object; measured in grams (g).
If enough heat is ADDED to a container of water, what will happen to the water?
It will turn into a gas.
Is acid rain dissolving paint off of a wall a physical change or a chemical change?
What should a scientific diagram include?
It should include the experiment set up, title, and labels.
Is state of matter an observable or measurable property?
Observable
What is a physical change?
A change that does not affect he chemical structure of a substance.
If enough heat is TAKEN AWAY from a container of water, what will happen to the water?
It will become a solid.
Is water vapor condensing on a cold window a physical change or chemical change?
Physical change
The following is an example of a ____________________.
In a chemical reaction, I think the mass will stay the same.
Hypothesis
Is mass an observable or measurable property?
Measurable
What is a chemical reaction?
A change that rearranges the atoms of the original substances into a new substance that has different properties from the original substances.
A student observes that an inflated balloon gets larger when it is warmed up by a lamp. Why does the balloon increase in size when it is heated up? HINT: think about movement of atoms in different states of matter.
The balloon increases in size when it's heated up because the atoms of gas inside the balloon will move faster and spread out when heated. When they spread out, they will make the balloon larger.
Is burning toast a physical change or a chemical change?
Chemical change
Name the steps of the scientific process in order.
1. Question
2. Research
3. Hypothesis
4. Summarize Experiment
5. Materials and Procedures
6. Scientific Diagram
7. Data
8. Conclusion
I have two spheres that are exactly the same size. One sphere is made out of aluminum, the other sphere is made out of steel. Which property will best help me distinguish between the two cubes?
A. shape
B. size
C. texture
D. weight
D. weight
What is a property?
An observable or measurable characteristic of matter.