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Matter Words

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Matter Words

Play Turtle Diary's Matter Words game. It is just one of many exciting and interactive science games on Turtle Diary

Words Meaning Example
Matter Anything that has mass and occupies space; everything around us is made of matter. Water, air, and rocks are all forms of matter.
Element A pure substance made up of only one type of atom; it cannot be broken down into simpler substances. Oxygen is an element essential for breathing.
Compound A substance formed by chemically combining two or more elements in a fixed ratio. Water (H2O) is a compound made of hydrogen and oxygen.
Atom The smallest unit of an element that retains its chemical properties. An oxygen atom consists of protons, neutrons, and electrons.
Molecule A group of two or more atoms chemically bonded together. Oxygen gas (O2) is a molecule composed of two oxygen atoms.
Substance A type of matter with a specific composition and distinct properties. Sugar is a sweet-tasting substance often used in cooking.
Physical Change A change in the form or appearance of matter that doesn't alter its chemical composition. Ice melting into water is a physical change.
Chemical Change A change in matter that results in the formation of new substances with different properties. Combustion of gasoline is a chemical change.
Phase A distinct form or state of matter with uniform properties (e.g., solid, liquid, gas). Ice is the solid phase of water.
Solid A phase of matter with a definite shape and volume; particles are closely packed together. Wood is a solid material.
Liquid A phase of matter with a definite volume but no fixed shape; particles are more loosely packed. Water is a common liquid at room temperature.
Gas A phase of matter with no definite shape or volume; particles are widely spaced apart. Oxygen in the air is a gas we breathe.
Density The measure of mass per unit volume of a substance; how much matter is packed into a space. Lead is denser than aluminum due to its higher mass per volume.
Mass The amount of matter in an object; measured in grams or kilograms. The mass of a baseball is about 145 grams.
Volume The amount of space occupied by an object; measured in liters or cubic meters. The volume of a shoebox is 10 liters.
Chemical Reaction The process in which substances (reactants) change into new substances (products) with different properties. Baking a cake involves a chemical reaction between ingredients.
Solution A homogeneous mixture in which one substance (solute) is dissolved in another (solvent). Table salt dissolved in water forms a saline solution.
Boiling Point The temperature at which a substance changes from a liquid to a gas (at atmospheric pressure). The boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit).
Freezing Point The temperature at which a substance changes from a liquid to a solid (at atmospheric pressure). The freezing point of water is 0 degrees Celsius (32 degrees Fahrenheit).
Evaporation The process by which a liquid changes into a gas at the surface, often due to heating. The puddle dried up through evaporation on a hot day.