Question | Answer |
classification | the process of arranging animals other things into groups according to their similarities |
characteristics of an insect | has head thorax abdomen/6 legs/simple & compound eye/ antennae/spiracle hind win forewing/ tracheae air sacs |
class spiders belong to | arachnids |
characteristics of a crustacean | head thorax abdomen/10 jointed legs/4 antennae/ eye on eye stalks/gills/ body parts grow back |
regeneration | missing body parts grow back |
geologist | scientists who study the earth |
earthquake | any trembling or shaking of the earths crust |
difference between magma and lava | magmas in the earth lavas out of the earth |
sedimentary rock | rock that is formed from sediments that have been pressed together into solid rock |
igneous rock | rock that forms when molten rock solidifies |
metamorphic rock | the change of a rock into a new type of rock |
galaxy | a star system containing from millions to billions of stars |
nebulae | large clouds of gas and dust floating through space |
Name for North Star | Polaris |
Brightest star in the night sky | Sirius |
Hottest part of the sun's atmosphere | Corona |
Sir Isaac Newton | famous for studying the visible spectrum,made Newtonian telescope, made universal laws of gravity |
Yuri Gagarin | the first person to travel in space |
Robert Goddard | " The Father of Modern Rocketry " |
Neil Armstrong | the first human being to set foot on the moon |
John Glenn | The first American to orbit earth |
oscillation | a back and forth motion that repeatedly follows the same path |
wavelength | the length of one complete wave or cycle of oscillation |
refraction | the turning back or turning aside of any wave when it hits an obstacle |
geostationary | follows the earths orbit |
Mercury | the closest planet to the sun |
Venus | the hottest planet in our solar system |
Mars | 1/2 the size of earth and the gravity is weaker. called red planet |
Jupiter | the largest planet in our solar system |
Saturn | the most glorious rings of any planet in our solar system |
Uranus | the entire system is turned on its side |
Neptune | orbit is unpredictable
day-16 hrs
yr-165 days |
polar orbit | traveling perpendicular to the equator |
Matter | anything that takes up space and has weight |
Weight | a measure of the pull of gravity on an object |
Mass | the amount of matter that makes up an object |
Density | the amount of matter in one unit of volume |
Element | substances that are composed of only one type of atom |
Molecule | a tiny group of two or more atoms that are bonded tightly together |
Compound | Substances that are composed of more than one type of atom bonded together |
Atoms | all matter is composed of these tiny particles |
Nucleus | the tiny, extremely dense core of an atom |
Electron | negative charge |
Neutron | neutral, no charge |
Proton | positive charge |
Electron shell | Electrons in the same distance from the nucleus |
Atomic number | every single element has this |
Combustion | whenever a substance reacts rapidly with oxygen |