This property explains why a large piece of wood floats while a small metal nail sinks in water.
What is relative density?
When sand and iron filings are mixed, each substance keeps its original properties. This describes a _____.
What is a mixture?
Equal forces acting on an object in opposite directions will most likely cause _____.
What is no change in motion?
In a flashlight, energy changes from chemical → electrical → _____.
What is light energy?
Light normally travels in what pattern?
What is a straight line?
The Sun’s energy causes water to evaporate during which part of the water cycle?
What is evaporation?
Two objects have the same volume but different masses. Which measurable property would explain why one feels heavier?
What is mass?
What tool would best separate iron filings from sand, and why?
What is a magnet because iron is magnetic?
A soccer ball speeds up when kicked harder. Which factor changed?
What is the amount of force applied?
Which component is missing if a circuit does not allow electricity to flow?
What is a closed path?
Which interaction occurs when light bounces off a mirror?
What is reflection?
How does the ocean help influence weather patterns?
What is it stores and releases heat and supplies water vapor?
A student claims that air has no mass because it cannot be seen. Which evidence disproves this claim?
What is an inflated balloon having more mass than an empty balloon?
Before and after sugar dissolves in water, the total mass stays the same. This shows that _____.
What is matter is conserved in solutions?
Describe how an unequal force affects an object’s motion.
What is it causes the object to speed up, slow down, or change direction?
Which type of energy is produced when a circuit causes a motor to spin?
What is mechanical (motion) energy?
Why does a straw look bent in a glass of water?
What is refraction?
Which landform is created when a river deposits sediment at its mouth?
What is a delta?
Which physical property allows copper wire to be used in electrical circuits instead of rubber?
What is the ability to conduct electric energy?
Why can saltwater not be separated using a magnet?
What is salt is not magnetic and is dissolved in a solution?
In a ramp investigation, what variable should be changed to test how force affects motion?
What is the height of the ramp?
Why will a bulb not light if only one wire connects it to the battery?
What is the circuit is incomplete?
Earth’s rotation causes which repeating daily pattern?
What is day and night?
How does wind change Earth’s surface over time?
What is by moving sediment and forming dunes?
Explain why magnetism is considered a physical property even though not all materials show it.
What is magnetism can be observed or tested without changing the substance?
Explain one way you could prove that salt is still present after it dissolves in water.
What is evaporating the water to leave salt behind?
Why must only one variable be changed in a force experiment?
What is to ensure a fair test and reliable results?
Design a circuit that produces thermal energy and explain how it works.
What is a circuit with a battery, wires, and a resistor that heats up when electricity flows?
Explain why shadows change position during the day.
What is Earth’s rotation changes the Sun’s apparent position in the sky?
Explain how water can create a canyon over long periods of time.
What is erosion from flowing water removes rock and soil?