WorksheetsScience Milestone Review
Total questions: 15
Worksheet time: 45mins
What is an example of a physical property?
Density
Color
Solubility
Reactivity
If two boys are pulling with the same amount of force, what will happen?
They will not move at all.
One boy will win and pull the other.
They will move in the direction of the stronger boy.
They will both fall over.
What is a molecule?
A single atom that cannot be broken down further.
A group of two or more atoms bonded together.
A type of chemical reaction between elements.
A mixture of different substances without any bonding.
What is an atom?
The smallest unit of an element that retains the properties of that element.
A particle that is larger than a molecule.
A type of chemical bond between two elements.
A form of energy that can be converted into matter.
What happens to the particles in a solid when it is heated?
The particles gain energy and vibrate more, potentially changing to a liquid.
The particles lose energy and move closer together.
The particles remain stationary and do not change.
The particles gain mass and become denser.
What is the definition of mass?
The amount of matter in an object, usually measured in grams or kilograms.
The force exerted by gravity on an object.
The volume of an object measured in liters or cubic meters.
The density of an object calculated by mass divided by volume.
What type of charge does an ELECTRON have?
positive
neutral
negative
indeterminate
What is the best way to measure the volume of a small rock?
Displacement method using graduated cylinder
Measuring the dimensions and calculating volume
Weighing the rock and using density
Submerging the rock in water without a cylinder
What is the definition of volume?
The amount of space an object occupies, usually measured in liters or cubic centimeters.
The weight of an object measured in grams or kilograms.
The surface area of an object measured in square meters.
The density of an object calculated by mass divided by volume.
What is the difference between a physical change and a chemical change?
A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.
A physical change results in the formation of new substances, while a chemical change alters the form of a substance.
Both physical and chemical changes do not affect the chemical composition of a substance.
A physical change is reversible, while a chemical change is irreversible.
What is a chemical property?
A characteristic of a substance that describes its ability to change into different substances.
A measure of how much a substance weighs.
A description of how a substance looks and feels.
A characteristic that determines how a substance reacts to light.
Properties that describe how a substance looks, feels, or its state of matter are __________________.
Chemical properties
Physical properties
Biological properties
Thermal properties
Evidence of a chemical reaction is shown by __________________.
the formation of a gas.
the change in color of a solution.
the increase in temperature of the surroundings.
the presence of a solid in a liquid.
What is the law of conservation of mass?
In a chemical reaction, mass is neither created nor destroyed.
Mass can be created but not destroyed in a chemical reaction.
The total mass of products is always greater than the total mass of reactants.
Mass is only conserved in physical changes, not in chemical reactions.
What is the formula for calculating density?
Density = Mass + Volume
Density = Mass ÷ Volume
Density = Mass × Volume
Density = Volume ÷ Mass
