Podcast
Questions and Answers
The study of matter and energy is called ______________.
The study of matter and energy is called ______________.
Physical Science
A ______________ is a possible explanation for a set of observations.
A ______________ is a possible explanation for a set of observations.
Hypothesis
The three states of matter are ______________, ______________, and ______________.
The three states of matter are ______________, ______________, and ______________.
Solid, Liquid, Gas
The measure of the amount of matter in an object is called ______________.
The measure of the amount of matter in an object is called ______________.
The force of gravity acting on an object is called ______________.
The force of gravity acting on an object is called ______________.
The change from a liquid to a gas is called ______________.
The change from a liquid to a gas is called ______________.
The process in which a solid changes directly into a gas is called ______________.
The process in which a solid changes directly into a gas is called ______________.
The amount of space an object occupies is called its ______________.
The amount of space an object occupies is called its ______________.
The ability of a substance to be hammered into sheets is called ______________.
The ability of a substance to be hammered into sheets is called ______________.
A substance made up of only one kind of atom is called an ______________.
A substance made up of only one kind of atom is called an ______________.
The law stating that mass is neither created nor destroyed in a chemical reaction is called the ______________.
The law stating that mass is neither created nor destroyed in a chemical reaction is called the ______________.
The basic unit of an element that retains its properties is called an ______________.
The basic unit of an element that retains its properties is called an ______________.
The process by which a gas changes to a liquid is called ______________.
The process by which a gas changes to a liquid is called ______________.
A ______________ is a combination of two or more substances that are not chemically combined.
A ______________ is a combination of two or more substances that are not chemically combined.
The process of breaking down a compound into simpler substances using heat or electricity is called ______________.
The process of breaking down a compound into simpler substances using heat or electricity is called ______________.
The ability of a substance to dissolve in another substance is called ______________.
The ability of a substance to dissolve in another substance is called ______________.
A chemical reaction in which energy is released, often as heat, is called an ______________ reaction.
A chemical reaction in which energy is released, often as heat, is called an ______________ reaction.
The study of the composition, structure, and properties of substances is called ______________.
The study of the composition, structure, and properties of substances is called ______________.
The temperature at which a substance changes from a solid to a liquid is its ____________ Point.
The temperature at which a substance changes from a solid to a liquid is its ____________ Point.
The state of matter that has no definite shape and no definite volume is ______________.
The state of matter that has no definite shape and no definite volume is ______________.
What is the difference between a chemical change and a physical change?
What is the difference between a chemical change and a physical change?
How does increasing temperature affect the motion of gas particles?
How does increasing temperature affect the motion of gas particles?
Why does a can of regular soda sink while a can of diet soda floats in water?
Why does a can of regular soda sink while a can of diet soda floats in water?
What property of a liquid allows insects to walk on water?
What property of a liquid allows insects to walk on water?
How do scientists use controlled experiments to test hypotheses?
How do scientists use controlled experiments to test hypotheses?
What happens to water molecules when they freeze?
What happens to water molecules when they freeze?
Explain why a helium balloon expands when heated.
Explain why a helium balloon expands when heated.
How can the mass of an object remain constant, but its weight change?
How can the mass of an object remain constant, but its weight change?
Why do metals conduct electricity better than nonmetals?
Why do metals conduct electricity better than nonmetals?
What are two ways mixtures can be separated?
What are two ways mixtures can be separated?
The process of separating a mixture based on boiling points is called ______________.
The process of separating a mixture based on boiling points is called ______________.
A ______________ separates mixtures by the densities of their components.
A ______________ separates mixtures by the densities of their components.
A ______________ can be used to separate iron from aluminum in a mixture.
A ______________ can be used to separate iron from aluminum in a mixture.
A compound is made of elements in a ______________ ratio.
A compound is made of elements in a ______________ ratio.
A mixture does not have a ______________ ratio of components.
A mixture does not have a ______________ ratio of components.
A ______________ is a homogeneous mixture where particles are evenly spread.
A ______________ is a homogeneous mixture where particles are evenly spread.
In a solution, the substance present in the largest amount is called the ______________.
In a solution, the substance present in the largest amount is called the ______________.
The ability of a substance to dissolve in another is called ______________.
The ability of a substance to dissolve in another is called ______________.
A ______________ is a solid solution of metals, like brass or bronze.
A ______________ is a solid solution of metals, like brass or bronze.
The amount of solute dissolved in a given amount of solvent is called ______________.
The amount of solute dissolved in a given amount of solvent is called ______________.
A solution with a small amount of solute is called a ______________ solution.
A solution with a small amount of solute is called a ______________ solution.
Flashcards
Physical Science
Physical Science
The study of matter and energy.
Hypothesis
Hypothesis
A testable explanation for observations.
States of Matter
States of Matter
Solid, liquid, and gas.
Mass
Mass
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Weight
Weight
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Evaporation
Evaporation
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Sublimation
Sublimation
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Volume
Volume
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Malleability
Malleability
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Element
Element
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Law of Conservation of Mass
Law of Conservation of Mass
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Atom
Atom
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Condensation
Condensation
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Mixture
Mixture
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Decomposition
Decomposition
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Solubility
Solubility
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Exothermic Reaction
Exothermic Reaction
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Chemistry
Chemistry
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Melting Point
Melting Point
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Gas
Gas
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Chemical Change
Chemical Change
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Physical Change
Physical Change
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Effect of Increasing Temp. on Gases
Effect of Increasing Temp. on Gases
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Soda Density
Soda Density
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Surface Tension
Surface Tension
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Controlled Experiment
Controlled Experiment
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Water Freezing
Water Freezing
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Helium Balloon Heated
Helium Balloon Heated
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Mass vs. Weight
Mass vs. Weight
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Why Metals Conduct Electricity
Why Metals Conduct Electricity
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Distillation
Distillation
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Centrifuge
Centrifuge
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Magnet
Magnet
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Solution
Solution
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Solvent
Solvent
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Concentration
Concentration
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Dilute Solution
Dilute Solution
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Concentrated Solution
Concentrated Solution
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Study Notes
- Physical Science is the study of matter and energy.
- A hypothesis provides a possible explanation for a set of observations.
- The three states of matter are solid, liquid, and gas.
- Mass measures the amount of matter in an object.
- Weight refers to the force of gravity acting on an object.
- Evaporation is the change from a liquid to a gas.
- Sublimation is the process in which a solid transforms directly into a gas.
- Volume refers to the amount of space that an object occupies.
- Malleability is the ability of a substance to be hammered into sheets.
- An element consists of only one type of atom.
- The Law of Conservation of Mass says that mass is neither created nor destroyed in chemical reactions.
- An atom is the basic unit of an element which retains its properties.
- Condensation is the process by which a gas turns into a liquid.
- A mixture is a combination of two or more substances that are not chemically combined.
- Decomposition is the process of breaking down a compound into simpler substances using heat or electricity.
- Solubility is the ability of a substance to dissolve in another.
- An exothermic reaction releases energy, often as heat.
- Chemistry is the study of the composition, structure, and properties of substances.
- The melting point is the temperature at which a substance changes from a solid to a liquid.
- Gas is the state of matter lacking a definite shape and volume.
- Chemical change results in a new substance, while a physical change alters the form/appearance without changing its composition.
- Increasing temperature increases the energy of gas particles, making them move faster and spread out.
- Regular soda sinks because it's denser than water, unlike diet soda, which floats due to lower density from artificial sweeteners.
- Surface tension enables insects to walk on water by creating a film-like layer.
- Scientists use controlled experiments by changing one variable at a time, keeping others constant, to isolate its effects.
- When water molecules freeze, they slow down and form a fixed, structured pattern, creating ice.
- A heated helium balloon expands as helium particles move faster and spread out, increasing the volume.
- Mass remains constant, but weight changes with gravity variations, such as Earth versus the Moon.
- Metals have free electrons, allowing electrical current to flow efficiently, making them better conductors than nonmetals.
- Mixtures can be separated via filtration (solids from liquids) and evaporation (removing a liquid from dissolved substances).
- Distillation separates a mixture based on boiling points.
- Centrifuge separates mixtures by the densities of their components.
- A magnet can separate iron from aluminum in a mixture.
- A compound has a fixed ratio of elements.
- A mixture does not have a fixed ratio of components.
- A solution is a homogenous mixture where particles are evenly spread.
- The substance present in the largest amount of a solution, is the solvent.
- Solubility is the ability of a substance to dissolve in another.
- An alloy is a solid solution of metals (brass or bronze).
- Concentration is the amount of solute dissolved in a given amount of solvent.
- A solution with a small amount of solute is dilute.
- A solution with a large amount of solute is concentrated.
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Description
Explore fundamental concepts in physical science, including states of matter, mass, weight, and volume. Learn about phase changes like evaporation and sublimation, and delve into the nature of elements, atoms, and mixtures. Understand the Law of Conservation of Mass and properties like malleability.
