Matter Basics
Anything that has mass and takes up space is called what?
Matter
What property is observed when a substance seems to disappear after being mixed with water?
Solubility
Which measurement tells you how much matter is in an object?
Mass
A material is not magnetic, does not conduct electricity, does not dissolve in water, and sinks. Which one is it: Iron, Plastic, Salt, or Aluminum
Aluminum
You want to know whether an unknown material is magnetic. What property should you test?
Magnetism
What are all materials made up of?
Particles too small to be seen, also called atoms.
A door needs to keep heat from passing through it. Should its material be a good conductor or a good insulator?
A good insulator
Which property describes how much space a material takes up?
Volume
Which material is soluble in water?
Salt, Iron, Wood, Plastic
Salt
You mix an unknown substance with water and it dissolves. What property did you observe?
Solubility
Which state of matter has a definite shape, mass, and volume?
Solid
Water is heavier than the same amount of oil. Which liquid is more dense?
Water
If two equal-sized samples are compared and one has more mass, which sample is more dense?
The sample with more mass
A sample is either iron or aluminum. Which single property would be distinguish them?
Magnetism
A student needs to identify an unknown material. Should the student rely only on appearance or use several measurable/observable properties?
Use several measurable/observable properties.
What is a physical state?
The classification of matter as a solid, liquid, or gas.
A food container will be used in a microwave. Which property from the test is important to consider: freezing point, color, shape, or melting point?
Melting point
Unknown object A has a mass of 54g and Unknown object B has a mass of 18 g. Which has the greater mass?
Unknown Object A
Unknown object C is magnetic and conducts electricity. Which material is the best match?
Wood, Iron, Salt, Plastic
Iron
Design a quick quick investigation using TWO properties to identify an unknown material.
Example: test magnetism and electrical conductivity, then compare results with known materials.
A material keeps the same identity while you observe a property. What kind of property are you observing?
A physical property
Name TWO physical properties you could use to tell two different metals apart.
Answers may include magnetism, conductivity, density, solubility, melting point, etc.
Unknown object C has a mass of 78 g and a volume of 10 mL. Unknown object D has a mass of 12 g and a volume of 24 mL. Which one is more likely to be a more dense material?
Unknown Object C
Why is using more than one property helpful when identifying an unknown material?
Multiple properties provide more evident and make it easier to distinguish the material from others.
Two materials look alike. Explain how measurements and observations could help you tell them apart.
Measure/observe multiple properties such as mass, volume, magnetism, conductivity, solubility, or density and compare the results.