#41 8th Grade Give an example of a trace fossil. Foot print Which type of fossil is likely to preserve plants, leaves, and insects? Preserved Which planets are the terrestrial planets? Mars, earth, venus, mercury What is the law of super position? In horizontal sedimentary rock layers, the oldest layer is at the bottom ______ are divided into periods. Eras

#42 Bell work 8th Grade What are the visible colors of the electromagnetic spectrum? ROYGBIV What phase comes after the waning gibbous? third quarter 3. What phase comes after the waxing crescent? first quarter 4. What type of fossil could potentially carry DNA? preserved 5. How many centimeters are in 3 kilometers? 100 x 1000 x 3 = 300,000 cm

BW # 43 _________ heaviest material; most dense layer (mostly iron and nickel), solid material (Earth Layers) Inner Core 2. ______(slow flowing liquid) (Earth Layers) outer core ________ produce three types of waves with different behaviors as they travel through materials. Earthquakes 4. _________ move out from the earthquake and travel the fastest of the three waves. Primary (P) waves 5. Point where the energy is released is called the focus.

#44 Bell work 8th Grade What is an epoch? the next level of time division below periods 2. During what era did vertebrates show up? Paleozoic era 3. What phase of the moon follows waning gibbous? third quarter 4. What is known as the age of the mammals? cenozoic 5. How many meters are in a hectometer? 100

#45 Bell work 8th Grade A ____ is the preserved remains or traces of an organism that lived in the past, usually more than 10,000 years ago. fossil 2. ______ give clues to the diversity of living things over the history of Earth, give clues to past climate and surface changes on Earth, and give clues to changes that have occurred with organism over time. fossils 3. There are different types of fossils based on how they were _____. formed 4. What are the 6 types of fossils formed? permineralized, mold, cast, carbonized, preserved, trace 5. How many meters are in a kilometer? 1000

8th Grade: 46 Waves cannot transport ______. matter Which lists the components of a solar system? A. the sun and planets only B.the sun and Earth only C. The sun, planets, meteors, asteroids, moons, comets, gases and empty space D None of these What do the 8 planets in our solar system have in common? They orbit the sun What is the definition of a celestial body? any natural object outside of Earth’s atmosphere Is a meteoroid an example of a celestial body? Yes

#47 1. What is the name of the point on Earth’s surface directly above where the energy is released? epicenter 2. A normal fault is caused by _________ forces. tension 3. The energy that spreads outwards in all directions as vibrations are called _______________. Seismic waves 4. What are the three characteristics of Primary (P) waves? Travel fastest, move through solid and liquid, and create push-and-pull motion 5. What are the three characteristics of Secondary (S) waves? Move slower than primary waves, can only move through solid rock, move in an up-and-down motion

#48 Bell work 8th Grade Petrified fossil is the same thing as a ____. Permineralized fossil 2. Animals that are more likely to survive and reproduce offspring with similar traits. What is it? population 3. What era did vertebrates appear? paleozoic era 4. There are ___ among species of similar populations.. variations 5. How many liters are in a deciliter? 1/10

#49 1. What is the metric unit of volume? milliliter 2. The prefix kilo- means ? 1000 3. What is one decameter? 10 meters 4. What is occurring when the moon is between the earth and sun? Solar eclipse 5. What are the steps to the scientific method? observation, hypothesis, experiment, analyze data, conclusion, and report findings

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#50 Earth’s movement around the sun is called ________. 2. Earth’s movement on its axis is called: 3. How many kilograms are there in 2082 grams? 4. A ______ eclipse occurs when the Moon is directly in-between the Sun and the Earth, blocking the Sun’s light casting a shadow over a certain area on Earth. 5. Dinosaurs were abundant during the Mesozoic Era and became extinct at the end of which period of Earth’s history? revolution rotation 2.082 solar cretaceous