Properties of Matter
Which physical property can be tested by seeing if an object sinks or floats in water?
Relative Density
In a mixture of peas, carrots, and corn, do the vegetables keep their original physical properties or do they change?
They keep their original physical properties.
A type of Energy that people can see.
Light
For electricity to flow and light a bulb, does the circuit need to be open or closed?
Closed
How long does it take for the Earth to complete one full rotation on its axis?
24 hours (or one day).
A student has a mixture of iron filings and sand. Which tool and property should they use to separate them?
A magnet
What is a special type of mixture where one substance dissolves evenly into another?
A solution
When light hits a mirror and bounces back at the same angle, what is this called?
Reflection
If one bulb in a string of lights burns out and the rest stay on, what kind of circuit is it?
A parallel circuit.
Earth's rotation causes the Sun to appear to rise in the ________ and set in the ________.
East; West.
If a substance like sugar "dissolves" when stirred into water, what physical property is being demonstrated?
Solubility
How can you separate salt from a salt-water solution?
By evaporating the water
Why does a straw look broken or bent when you place it in a glass of water?
Because of Refraction
What do we call a material, like a copper wire, that allows electricity to flow through it easily?
A conductor
What is the primary cause of the day and night cycle on Earth?
Earth's rotation on its axis.
Why are electrical wires usually covered in plastic or rubber?
Because plastic and rubber are insulators
Which of these is a solution: Fruit salad, trail mix, or lemonade?
Lemonade
How does a light wave travel?
In a straight line.
In a simple circuit with a battery, a bulb, and wires, what provides the "source" of electrical energy?
The battery
If you are standing outside at 12:00 PM (noon), will your shadow be very long or very short?
Very short (because the Sun is directly overhead).
Which state of matter has a definite shap e and volume?
A solid
Which of the following is the best example of a mixture: A pan of cake batter, A bowl of trail mix, a glass of soda, or A carton of milk
A bowl of trail mix
Looking through a hand lens (magnifying glass) makes an object appear larger. Is this caused by reflection or refraction?
Refraction
What is the role of metal in a circuit?
Metal is a conductor
In which direction will a shadow point if the Sun is setting in the West?
East