Vocabulary
The amount of matter in something, measured in grams
What is mass?
Objects that are more dense sink in water; less dense objects float in water
What is relative density?
Which of the following scientific tools can be used to test if matter is magnetic?
a. stopwatch
b. magnet
c. thermometer
d. hot plate
b. magnet
The amount of space that matter takes up
What is volume?
Measurable characterisitics: mass, magnetism, physical state, relative density, solubility, and the ability to insulate or conduct heat or electricity
What are physical properties?
Which of the following is a conductor of electric energy?
a. glass marble
b. cotton ball
c. plastic tube
d. metal spoon
d. metal spoon
This tool can be used to measure mass in grams
What is a triple beam balance?
The property of attraction to a magnet
What is magnetism?
Material that allows electric current or thermal energy to flow through easily
What is a conductor?
The classification of matter as a solid, liquid, or a gas
What is state of matter?
A student was investigating a sample of matter that is attracted to a magnet and is a good conductor of electricity. Based on this evidence, the matter is made of -
A. iron
B. wood
C. glass
D. paper
A. iron
Which of the following could you use to test the density of several small pieces of matter?
a. Hot plate and water
b. Spring balance and notebook
c. Aquarium and water
d. Magnet and collecting net
c. Aquarium and water
Anything that has mass and takes up space
What is matter?
Measurement of the ability of a solid to dissolve in a liquid
What is solubility?
Sort these substances into electrical conductors and insulators:
metal spoon
plastic spoon
fabric
paper
aluminum foil
wood chopstick
rubber eraser
paper clip
Electrical Conductors:
metal spoon
aluminum foil
paper clip
Electrical Insulators:
plastic spoon
fabric
paper
wood chopstick
rubber eraser
In a graduated cylinder, you measure 50 ml of water. After putting a ball in the water, you read 70 ml on the graduated cylinder. What is the volume of the ball?
20 ml
Define "Insulator"
Answers may vary. Material that slows down or stops electric current or thermal energy from flowing.
Name a property of matter that can be used to separate these substances into 2 or more groups. Then, group the substances:
Rubber eraser
Metal spoon
Glass bottle
Iron nail
Paperclip
Plastic bead
Answers may vary.
Thermal/electrical conductors and insulators
Floats in water/sinks in water
Magnetic/nonmagnetic
How could you separate items that are different densities? Explain.
Answers will vary. You could see if the items float or sink in certain liquids. If it floats, it is less dense, and if it sinks, it is more dense.
You and your friends are at the park on a sunny day, and you are playing on the slide. As you slide down, the hot slide burns your legs. Explain why this happened and why you didn’t burn your hands when you climbed up the rope ladder.
Answers will vary. The metal of the slide is heated by the Sun because metal is a good thermal (heat) conductor. Rope is an insulator, so the rope ladder did not hold the heat from the sun.