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60 Power Words
Science Vocabulary
| Term | Definition |
|---|---|
| gravity | a force that pulls objects toward each other |
| rotation | spin; turning around |
| revolution | movement around another object |
| weathering | process of rocks breaking down |
| erosion | process of moving weathered rock |
| evaporation | changing of a liquid into a gas |
| condensation | changing of a gas into a liquid |
| precipitation | water leaving the clouds and falling to Earth as rain, snow, sleet or hail |
| climate | average of all weather, through all seasons, of a region over a long period of time |
| humidity | amount of moisture in the air |
| reflection | bounce back from a surface |
| refraction | bending of a wave when it enters a different object |
| absorb | to take in |
| conduction | movement of heat between two objects that are touching |
| friction | a force that slows moving objects and it causes things to get hot |
| balanced forces | forces acting on an object that are equal and opposite |
| unbalanced forces | forces acting on an object that are not equal and opposite |
| pollination | process of moving pollen to a plant for fertilization |
| fertilization | process of a sperm and egg joining together to make a seed |
| germination | process of sprouting/growing a plant from a seed |
| vertebrate | animals with a backbone |
| invertebrate | an animal without a backbone |
| inherit | receive a trait from a parent by genes |
| producer | living things that make their own food |
| consumer | living things that eat other living things |
| carnivore | a consumer who eats other animals |
| herbivore | a consumer who eats only plants |
| pitch | how high or low a sound is |
| vibration | a rapid back and forth movement that produces sound |
| energy | ability to make something move or change |
| sedimentary rock | rock formed when deposited sediment becomes cemented together |
| metamorphic rock | a rock that is changed by heat and pressure deep in the Earth |
| igneous rock | rock formed when magma, or melted rock, cools and hardens |
| renewable resources | a resource that can be replaced quickly |
| nonrenewable resources | a resource that is not preplaced quickly |
| physical change | a change in matter in which a new substance is not formed |
| chemical change | a change in which one or more substances are changed into a new substance |
| metamorphosis | a major change in the form or structure of someone or something |
| omnivore | a consumer that eats both plants and animals |
| predator | consumer that hunts other animals for food |
| larva | a small, wormlike stage in the life cycle of some insects |
| pupa | the stage in the life cycle of some insects when it changes from a larva to an adult |
| seed dispersal | movement of a seed from parent plant to a new location |
| liver | an organ in the body that cleans your blood, stores energy, and produces a digestive liquid (bile) |
| intestines | an organ in the body where digestion and absorption of food occurs |
| pancreas | a gland in the body that aids in digestion |
| kidneys | an organ that removes waste from the blood and forms urine |
| stamen | male organ of a flowering plant that produces pollen |
| pistil | female organ of a flowering plant |
| mineral | any nonliving solid that has a crystal form |
| dissolve | to mix a dry ingredient with a liquid and it becomes part of the liquid |
| variable | an element that can be changed or adapted |
| closed circuit | an electric circuit through which a current can flow in an uninterrupted path |
| mixture | combination of two or more substances that keep their identities |
| plant structures | parts of the plant which have roles or functions |
| function | the role (job) of a plant part |
| mammal characteristics | animals with fur or hair covering its body and lungs for breathing air |
| reptile characteristics | animals with scales covering its body |
| amphibian characteristics | animals with smooth, moist skin that starts life in water and moves to land |
| bird characteristics | wings, feathers, beaks and lungs, lays eggs |
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