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Transcript of EMorales-8th-Grade-Science-Final-Exam-Review
2.Create a Testable Question
3.Form a hypothesis
6.Form a conclusion
7.Communicate results What are 3 pieces of Lab safty equipment? Goggles, Gloves and Fire exingusher 3 states of matter Liguid, solid, and gas Hypothesis Its a testable answer to a testable question Science vs. Pseudoscience Pseudoscience is fake and can't be proven
Science is real and can be proven and tested Chemical vs. Physical properties The chemical property of substance is the ability to participate in a chemical reaction.A phsyical property of a substance is the hardness, color, or density and doesn't involve a chemical change. Unit 2 Gram (mass), Meter (length), Liter (Volume) What are 3 types of graphs and what do they measure? Line graph(time), Pie graph(portions), and Bar graph(compares sets of information) Independent vs. Dependent variable Independent variable is the expermental and Dependent variable is dependent on the independent Changes in the states of matter Atom the smallest unit of an element Compound A substance that has two or more elements combined by chemical bonbs(ionic or covalent) Mixture a substance consisting of two or more substances mixed together without any chemical bonding between them Unit 3 Parts of an Atom Periodic table of Elements Metals PH Scale scale to catergorize Acids and Bases, the most acidic is the lowest and the most basic is the highest table that shows and organizes them into groups and period (number of valence electrons) known element like gold and lithum any of a class of elementary substances which are characterized by opacity, ductility, conductivity, and a unique luster when freshly fractured. Nonmetals substance that doesn't show such characteristic properties of metals as hardness, mechanical adaptability, or the ability to conduct electricity Metalloids an element that has both metallic and nonmetallic properties Valence Electrons outer electrons and have a negative charge (all electrons have a negative charge) Neutrons have a neutral charge Protons have a positive charge Ionic bond Covalent bond is when two atoms share valence electrons ussaully one or more the attractive force between oppositely charged ions which form when electrons are transferred from one atom to another Acid Base Hydrogen Alkali metals Alkaline-eartth metals Transition metals Boron group Carbon group Halogens Nitrogen group Oxygen group Noble Gases any compound that makes hydronium ions when dissolved in water any compounds that make hydroxide ions when dissoled in water Neutralization Unit 4 What causes the season on Earth? Earths revolution around the sun the reaction of an acid and a base to form a neutral solution of water and salt Rotation Revolution Spring tide Neap tide Axis Heliocentric Geocentric An imaginary line that passes through the north and south pole, the Earth spins on it When a planet or moon spin around its axis When a a planet revolves around it sun occur when sun and moon are lined up, since there is a really big gravitational pull spring tides are created(spring tides are big tides) occur when the sun is perpendicular to the moon, so the gravitational forces cancel out creating esspecially weak tides that every thing revolved around the Earth and Moon that everything revolves around the sun Units 5,6,7, and 8 What is an equinox? One the two days of the year which hours of daylight equal hours of darkness Hemisphere One half of the Earth divded at the equator Phases of the Moon Astroid Meteor Meteoroid a small stone and metal that orbits the sun and stays in orbit a strike of light in the sky that forms when a piece of space rock strikes Earth's surface a small space rock that orbits the sun What are the Gas Giants? What are Terrestrial Planets? What diagram do we use to measure a stars size and color? What are the layers of the Sun and the Characteristics of each? What are the different types of Galaxies we went over in class? Gravitational Force Absolute Magnitude Apparent Magnitude Carbon Cycle Nitorgen Cycle Water Cycle the inner planets of our solar system; they are soild and dense and have rocky surfaces the outer planets of our solar system; they made up of numerous gasses and are usually larger than terrestrial planets the force of attraction between all masses in the universe the manitude of a star as it appears to an observeration on Earth the true magnitude of a star Photosphere- its the coolest of three (5800 k or 9980.6 degrees F, its the layer of the sun we see during the day.
Chromosphere-temp. is hotter than Photosphere (10,000 k or 17540 degrees F) and scientists don't know why. Can only see during solar eclipse.
Corona-Outer most layer of the sun and its 1,000,000 km thick. Temp. is 10,000,000 k and can only see through x-rays. Light year the distance a light travels in a Earth year, it goes 6 trillion mi/y Spiral, Elliplical, and Irregular the HR diagram Photosynthesis Cellular Respiration the movenment of Earth's water the movenment of Earth's carbon the movenment of the Nitorgen on the Earth Northern hemisphere Southern hemisphere makes food for plants converts stored energy into usable forms What does each base unit measure? My future goals for high school is to get A's in class next year. Finish medical acdemy at Manatee. Get Drivers Ed to get a driving liense and get a job to raise money. Get enough high school credits to graduate. Get a scholarship to go to college and/or medical school and become a forensic pathologist.
My future goal for college is to do good in class. Pass it and graduate from college with straight A's. Go to medical school and pass it with straight A's. Get a doctors degree. Get a better job with better pay. Get a place to live (apartment) and rent or buy it.
My goals for beyond is to serve in the militry for a short time. Become a forensic pathologist. Buy myself a house or apartment and have my own truck or car. Get my mom and dad a house in Mexico. Travel to different parts in the world. H.A.G.S. Mr. Soles