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MSA Review M-O
MSA Review Vocabulary M-O
| Question | Answer |
|---|---|
| Magnetic: | Having the properties of a magnet. |
| Magnetic field: | A region of space around a magnet in which objects are affected by the magnetic force. |
| Magnetism: | The field of force produced by a magnet or an electric current. |
| Magnification: | The apparent enlargement of an object by an optical instrument. |
| Malleability: | Ability of a substance to be molded into different shapes. |
| Mantle: | The middle layer of the Earth between the crust and the core. |
| Mass: | A measure of the amount of matter in an object. |
| Mass number: | The number of protons and neutrons in the nucleus of an atom. |
| Matter: | Anything that has volume and mass. |
| Mechanical Energy: | Energy an object has because of its motion or position. |
| Metals: | Elements that usually have luster, conduct heat energy and electricity, and usually bend without breaking. |
| Metamorphic (rock): | Rock formed when igneous or sedimentary rock is changed by pressure, heat, or chemical reactions. |
| Meteor: | A meteoroid that burns as it travels through Earth's atmosphere leaving a streak of light made of hot gases |
| Mineral: | A naturally occurring, nonliving solid with a characteristic crystal, structure and definite chemical makeup. |
| Mixture: | A combination of two or more substances that have not combined chemically and that can be separated by physical means. |
| Model: | An illustration, description, small reproduction, or other, representation that is used to explain an object, system, or concept. |
| Mold: | A fossil that is an empty space in a rock that shows the outward shape of a dissolved organism. |
| Molecule: | The smallest unit of a substance that has all of the physical and chemical properties of the substance and that is composed of two or more atoms. |
| Momentum: | The product of the mass times the velocity of an object. |
| Moon: | A natural satellite revolving around a planet. |
| Motion: | Change in position of an object relative to a reference point. |
| Mountain: | A landform with a high elevation. |
| Mud flow: | A downhill movement of mud which usually occurs after a heavy rainfall. |
| Multicellular: | Composed of more than one cell. |
| Natural resource: | Something from the natural environment (water, air, trees, fuels) that is used to meet one's needs and wants. |
| Neap tide: | A tide that occurs during the first and last quarter phases of the moon in which the water level is lower than normal. |
| Neutral: | A substance that does not have the properties of an acid or a base, but has an equal number of hydrogen and hydroxide ions. It has a pH of 7. |
| Neutral atom: | An atom with an equal number of protons and electrons is electrically neutral. |
| Neutron: | Particle with a neutral charge located in the nucleus of an atom. |
| Newton's Laws of Motion: | Three laws that explain the relationships between force and motion. |
| Nitrogen (cycle): | The global circulation of nitrogen brought about mainly by living things. |
| Noble gases: | Group of elements in the periodic table that generally do not react with other elements, such as neon and krypton. |
| Nonconductor: | 1. A material through which an electric current does not flow.2. A material through which heat energy does not flow. |
| Nonmetals: | Elements that in general do not conduct electricity, are poor conductors of heat, and are brittle when solid. |
| Nonnative species: | Plants and animals that are not native to an environment, introduced intentionally or accidentally. When these plants or animals outcompete and crowd out native species for space, light, and nutrients, they are considered to be invasive. |
| Nonrenewable resource: | Resources that can be depleted, such as coal, oil, and minerals. |
| Nuclear energy: | Energy that is released either by splitting atomic nuclei or by forcing the nuclei of atoms together. |
| Observe: | To gather information and direct evidence by using senses and/or scientific instruments. |
| Ocean: | The continuous body of salt water on Earth. |
| Ocean current: | A tidal or non-tidal continuous movement of ocean water in a certain direction. |
| Offspring: | The product of reproduction by an organism or organisms. |
| Optical activity: | A property of certain minerals to reflect or refract light, such as Iceland spar bends light in two directions showing a double image. |
| Orbit: | A path of one body in its revolution about another body. |
| Organ: | A structure made up of different types of tissues that work together to do a specific job. |
| Organism: | A living thing. |
Created by:
wknopf
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