| A | B |
|---|
| herbivore | an animal that eats plants? |
| heredity | the passing of traits from one generation to another? |
| humidity | the amount of water vapor in the air? |
| hypothesis | an idea, theory, or assumption that can be testing in scientific investigation? |
| independent | a variable that is isolated for study in an experiment? |
| inertia | tendency of objects to keep doing what they are doing? |
| interpret | figure out the meaning of a set of data? |
| ionic | bond formed when one atom takes electrons and another atom gives electrons? |
| kinetic | energy of moving atoms, particles, or objects? |
| law of conservation of mass | states that matter is not created or destroyed in chemical reactions; that the number of particles before and after a reaction is equal? |
| magma | hot, molten rock material beneath the surface of the earth? |
| mantle | Earth's second layer; between the crust and the core? |
| mass | the amount of matter in something? |
| meiosis | the process of cell division at the beginning of reproduction? |
| metamorphic | igneous or sedimentary rock changed by pressure or heat? |
| mitosis | the process of one complete cell dividing into two complete cells? |
| nervous | body system that controls the flow of information in the body; it is made up of the brain, spinal cord, sensory nerves, and motor nerves? |
| neutron | a particle within an atom's nucleus that has no charge? |
| Newton's first law of motion | if the forces acting on an object are balanced, the object will continue doing what it is doing? |
| Newton's second law of motion | the acceleration of an object is related to the amount of force acting on it and the mass of the object by the following equation: a=F/m? |
| nucleus | the center of an atom that contains the protons and neutrons? |
| octet rule | in order to become more stable, atoms will take electrons, lose electrons, or share electrons so that their outermost shell is filled with eight electrons? |
| omnivore | an animal that eats both plants and animals? |
| organ | group of tissues that work together to do a job in the body? |
| organelle | a specialized structure with a cell such as a ribosome? |
| periodic table | a visual representation of all elements arranged in increasing atomic number and grouped according to similar properties? |
| phase | any of the four states of matter, including solid, liquid, gas, and plasma? |
| plate tectonics | theory that the upper layer of the earth is made up of large plates that move 1 or 2 centimeters per year? |
| predator | higher organism in the food chain that eats other animals? |
| producer | a plant? |
| proton | positively charged particle in an atom's nucleus? |
| radiation | exchange of heat energy with no direct contact or movement of matter? |
| recessive | a trait that does not appear in an offspring when two different genes are mixed? |
| refraction | when light changes direction as it passes from one medium to another? |
| respiratory | the body system that bring oxygen into the body and eliminates carbon dioxide waste? |
| scatter | when light is reflected on an irregular pattern from a irregular surface? |
| sediment | eroded earth materials that have been deposited by water? |
| sexual reproduction | the creation of offspring by two parents? |
| shell | space for an electron orbit in an atom? |
| skeletal | body system made up of bones that support the body, protect internal organs, and allow the body to move? |
| solubility | a measure of how much solute can be dissolved in a given amount of solvent under certain conditions? |
| solution | a homogenous mixture in which one substance is dissolved in another? |
| system | a group or organs or parts working together to achieve a purpose? |
| table | visual organizer that places data into rows and columns? |
| temperature | the measurement of how fast the particles of matter in an object are? |
| tissue | a team of plant or animal cells that does a specific job? |
| trait | characteristic of a living being? |
| translucent | allowing light to pass through only partially? |
| trial | a repeated test in a systematic investigation? |
| unicellular | having only one cell? |
| variable | differences between the traits of the parents and offspring? |
| vector | a quantity that has direction and magnitude, such as force or speed, and can be represented by an arrow? |
| volt | a unit that measures the push of electric current? |
| volume | amount of space an object takes up? |
| water cycle | the process by which water is evaporated from the surface of the earth by the sun's energy and later cooled and condensed into precipitation to recycle the water and begin the cycle again? |
| wave | repeating vibrations that travel through space? |
| wavelength | the distance between identical parts of a continuous wave? |
| work | the amount of force needed to move something a certain distance? |
| zygote | the cell formed when a sperm and an egg combine? |
| transparent | allowing light to pass through completely? |
