Science Class 9: Properties of Matter

<p>It becomes a gas (B)</p> Signup and view all the answers

<p>It is the amount of mass per unit volume. (C)</p> Signup and view all the answers

<p>The ability to react with other substances to form new substances (C)</p> Signup and view all the answers

<p>The ability of a substance to remain unchanged or decompose (D)</p> Signup and view all the answers

<p>Toxicity (D)</p> Signup and view all the answers

<p>They move faster (C)</p> Signup and view all the answers

<p>Particles are always stationary (A)</p> Signup and view all the answers

<p>A pure substance made up of two or more different elements chemically combined. (B)</p> Signup and view all the answers

<p>The ease with which a liquid flows. (C)</p> Signup and view all the answers

<p>Color of a liquid. (C)</p> Signup and view all the answers

<p>Mass divided by volume. (B)</p> Signup and view all the answers

<p>The temperature at which a solid turns into a liquid. (B)</p> Signup and view all the answers

<p>It has a fixed composition and definite properties. (B)</p> Signup and view all the answers

<p>A mixture that has a uniform composition throughout. (D)</p> Signup and view all the answers

<p>A compound is made of elements that are chemically combined. (B)</p> Signup and view all the answers

<p>The ability of a substance to react and burn in air (A)</p> Signup and view all the answers

<p>More stable substances take longer to break down (A)</p> Signup and view all the answers

<p>Flammability (D)</p> Signup and view all the answers

<p>The potential harm exposure to that substance can cause (B)</p> Signup and view all the answers

<p>It shares properties of both metals and nonmetals. (A)</p> Signup and view all the answers

<p>Reactivity of sodium with water (A)</p> Signup and view all the answers

<p>If it exhibits harmful effects at high enough concentrations (B)</p> Signup and view all the answers

<p>How it interacts with other substances to form new entities (C)</p> Signup and view all the answers

<p>Propane burning in a hot air balloon (C)</p> Signup and view all the answers

<p>It resists decomposition or breakdown over time (C)</p> Signup and view all the answers

<p>Oxygen can be lethal at certain high concentrations (B)</p> Signup and view all the answers

<p>Combustibility (C)</p> Signup and view all the answers

A substance with a fixed composition and definite properties.

A combination of two or more substances where each keeps its own properties.

A mixture with a uniform composition throughout.

A mixture with a non-uniform composition.

A pure substance that cannot be broken down into simpler substances by ordinary chemical or physical means.

How a substance reacts with other substances to form new ones.

A substance's ability to stay the same or break down.

How harmful a substance is.

All matter is composed of tiny particles.

Particles of matter attract each other.

The ability of a substance to burn in air.

How easily a substance decomposes or breaks down.

Temperature at which a solid changes to a liquid.

Mass per unit volume of a substance.

Methods to isolate different components of a mixture.

Change in state from liquid to gas.

How readily a substance reacts with another substance to form new substances. It describes the substance's tendency to participate in chemical reactions.

Determines the amount of matter in an object. It usually uses units like grams or kilograms.