Vocabulary
This is the one factor in an experiment that a scientist changes on purpose.
independent variable?
When you plug in a toaster, this type of energy transforms into thermal energy to heat your food.
electrical
This property tells how tightly packed the matter in an object is.
density
In a solution of saltwater, this substance is the solvent.
water
This property describes how much space an object takes up.
volume
This part of an experiment is measured or observed to see how it responds to the change.
dependent variable
When the Sun warms a sidewalk, light energy changes into this type of energy.
thermal
This tool is used to measure the mass of an object when calculating density.
triple beam balance
This is a combination of two or more substances that can be easily separated.
mixture
This property tells how heavy an object is for its size and is calculated using mass and volume.
density
This mixture forms when a substance dissolves evenly into another substance, like salt in water.
solution
When you strike a drum, mechanical energy transforms into this type of energy that your ears can detect.
sound
If two objects have the same size but different densities, this property will be different between them.
mass
This happens to a solute when it breaks apart and spreads evenly throughout a solvent.
dissolving
This physical property describes how easily electricity can flow through a material.
conductivity
These are the factors in an experiment that must stay the same so the test is fair.
Controlled variable
In a flashlight, chemical energy stored in the batteries changes into electrical energy and then into this type of energy.
light
An object will do this if its density is less than the density of water.
float
This type of mixture forms when a substance dissolves evenly and cannot be separated by filtering.
solution
This physical property determines whether a substance will dissolve in another substance, like sugar in water.
solubility
This type of material allows heat or electricity to flow through it easily.
conductor
When you ride a bike downhill, the stored potential energy at the top transforms into this type of energy as you begin to move.
mechanical
Increasing this variable while keeping mass the same will make an object’s density decrease.
volume
This tool or process can separate mixtures like iron filings and sand but cannot separate solutions like saltwater.
magnet
This physical property explains whether a material is attracted to a magnet or not.
magnetism