grade 6 science test 11 nine weeks
Terms
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- amount of matter in one unit of volume
- density
- anything that takes up space and has weight
- matter
- substances that are composed of more than one type of atom bonded together
- compounds
- substance composed of only one atom
- element
- tiny group of two or more atoms that are bonded tightly together
- molecule
- Herschel discovered
- Uranus
- best known for its rings
- Saturn
- Jupiter's largest moon
- Ganymede
- the morning star
- Venus
- speediest planet
- Mercury
- measure of the pull of gravity
- weight
- amount of matter that makes up an object
- mass
- metric unit used to measure mass
- gram
- tiny particles that all matter is composed of
- atoms
- given name to the number of protons in an element
- atomic number
- positive particles found in the nucleus
- protons
- negative particle in an atom
- electrons
- lacking an electrical charge
- neutral
- chemical reaction that occurs when a substance reacts rapidly with oxygen
- combustion
- first man on the moon
- Armstrong
- first man to see colors in white light
- Newton
- first man to travel in space
- Gagarin
- first American to orbit earth
- Glenn
- fothe of modern rocketry
- Goddard
- single rise or depression in a wave
- pulse
- bending of any wave direction at the boundary between two wave nedia
- refraction
- orbit that allows a satellite to remain in the same spot
- geostationary
- back and forth motion that follows the same pattern
- oscillation
- length of one complete wave or cycle of oscillation
- wavelength
- large clouds of gas and dust floating in space
- nebulae
- hot center of the sun
- core
- brightest star in the night sky
- Sirius
- star system containing millions to billions of stars
- galaxy
- hottest region of the sun's atmosphere
- corona
- north star
- Polaris
- a scientist who studies the structure of the earth
- geologist
- trembling or shaking of the earth
- earthquake
- magma that has reached the earth's surface
- lava
- rock formed by sand and minerals pressed together
- sedimentary
- rock changed by heat or pressure
- metamorphic
- arranging animals or other things into groups according to similarities
- classification
- have 3 distict body regions
- insects
- grow back lost body parts
- regeneration