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Memory Cards

TermDefinition
What is astronomy? ... is the study of the universe. (Planets, stars, nebulae, comets, asteroids, and black holes.)
What is an astronomer? ... is a person who uses special tools and observations to learn about the universe.
What is a sun? ... is a star and makes its own energy in the form of light and heat.
What is a moon? ... is an object that travels around a planet. Our moon affects the ocean tides, and travels around Earth once a month.
What is a planet? A planet moves around a sun, is spherical, does not produce light and has its own gravity.
What is a solar system? A solar system has one sun that all the planets and other objects travel around.
What is a lunar eclipse? ... is a darkening of the Moon as the Moon passes behind the Earth and the Earth's shadow falls on the moon.
What is a solar eclipse? ... is a darkening of the sun when the Moon passes in front of the Sun and the Sun's rays are blocked.
What is a comet? ... is a large chunk of rock and ice that flies through space at great speed. Comets look like they have tails.
What is a meteorite? ... is an asteroid that has hit the Earth.
What is an asteroid? ... is an irregular shaped rock moving through space at high speeds.
What is a galaxy? ...is a large group of solar systems, stars, and other objects in space held together by gravity.
Which galaxy is Earth in? ...is in the Milky Way Galaxy.
What is a nebula? ... is clouds of gas, dust, and particles that swirl in space to create amazing cosmic art.
What is gravity? Gravity is the force that makes everything fall down towards the Earth. Everything that has matter has gravity. How much gravity an object has depends on how big it is and how close it is.
What are the steps of the scientific method? 1. Make observations 2. Form a hypothesis 3. Perform an Experiment 4. Collect data 5. Draw conclusions
What is chemistry? ... is the study of matter and the chemical change that matter undergoes.
What is matter? Everything around us is matter. Matter is anything that has mass and occupies space. There are three different states of matter - solid, liquid, and gas. Matter is made up of many atoms.
What is an atom? All matter is made up of atoms, which are made up of protons, neutrons and electrons. Atoms cannot be created nor destroyed but can be rearranged.
What is a molecule? ...is when two or more atoms bond together. Molecules come in lots of shapes and sizes.
What is a covalent bond between atoms? ... the atoms are joined together by shared electrons.
What is a chloroplast? organelle in a plant cell that is a “food factory” for a plant.
What do the organelles such as the Golgi apparatus, ribosomes, microtubules, and kinesin do? The Golgi apparatus & ribosomes make special proteins & package them. The microtubules act like roads to move the proteins & the kinesin act like the trucks carrying the proteins on the roads to leave the cell so the protein can go where it is needed.
Created by: jgordon.lpa
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