How Can I Smell from a Distance?

Weight

• A measure of the gravitational force exerted on an object; this can change based on the object's location in the universe.

• The total mass of an object regardless of its location.

• The amount of matter in an object, which remains constant regardless of location.

• The force that opposes the motion of an object.

Precipitation

• Water that falls from clouds to the Earth's surface in different forms, like rain, snow, sleet, or hail.

• A type of cloud formation that indicates a storm is coming.

• The process of water vapor turning into liquid water in the atmosphere.

• A measurement of the amount of water in the soil.

Chemical change

• A change that occurs when 1 or more substances change into entirely new substances with different properties.

• A process where substances are mixed without any change in their chemical composition.

• A reaction that only involves physical changes, such as state or appearance.

• A transformation that results in the same substances being present before and after the process.

Contracting

• to increase in size, space, number, or amount

• to decrease in size, space, number, or amount

• to remain the same in size, space, number, or amount

• to expand in size, space, number, or amount

Element

• A substance that can be broken down into simpler substances by chemical means.

• A pure substance that cannot be separated into simpler substances by physical means.

• A mixture of two or more substances that retain their individual properties.

• A substance that cannot be separated or broken down into simpler substances by chemical means.

Mass number

• The total number of electrons in an atom.

• The sum of the numbers of protons and neutrons in the nucleus of an atom.

• The number of protons in the nucleus of an atom.

• The average mass of an atom's isotopes.

Hardness

• A material's ability to conduct electricity

• A material's ability to resist permanent deformation, such as scratching or denting; this is based on the Mohs Scale of Hardness

• A material's ability to absorb heat

• A material's ability to change shape under stress

State of Matter

• Solid, Liquid, Gas, and Plasma

• Solid, Liquid, Gas, and Vapor

• Solid, Liquid, Gas, and Foam

• Solid, Liquid, Gas, and Mist

Plasma

• A state of matter where atoms are tightly packed together

• A state of matter where a gas becomes so hot that its atoms lose electrons, creating a mix of positively charged ions and freely moving electrons

• A state of matter that is always solid at room temperature

• A state of matter that can only exist in extreme cold conditions

Electron

• A subatomic particle that has a negative charge.

• A positively charged particle found in the nucleus.

• A neutral particle that orbits the nucleus.

• A particle that has no mass and is found in the vacuum.