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  1. 1st Quarter Science Study Guide

  2. Essential Questions???????? 1.How is friction produced? 2.What effect does friction have on the speed of a rolling object? 3.What type of surface will produce the most friction when they rub against one another? 4.What types of surfaces will produce the least amount of friction? 5.How do inclined planes affect motion?

  3. Match the words with the correct definition. • -A mass in motion • -a push or a pull • -any two objects attract each other with_________. • -a force that that makes it difficult to move an object across a surface • -is how difficult it is to move or slow down an object • Force • Inertia • Momentum • Gravitational force • friction

  4. Friction produces ________ . Heat Ex. Hands or sticks rubbed together will create heat.

  5. If a meteor was flying into the earth’s atmosphere it might glow because of __________. friction

  6. What types of substances reduce friction? Lubricants Oil, water, ice, glass, pam spray, dew, smooth surfaces

  7. What types of surfaces increase friction? Rough surfaces, carpet, gravel, sandpaper

  8. More friction _______an object’s motion? slows

  9. Less friction _______an object’s motion? Speeds up

  10. An objects motion is its __________. momentum

  11. Momentum is determined by the _______ and ______ of and object as well as the angle. Mass and velocity

  12. Balanced __________ forces are those that press equally on either side of an object.

  13. If you have balanced forces on either side of an object it will __________. not move

  14. A push or pull is the result of _________________ forces. unbalanced

  15. An object, like a bicycle, going uphill will have less _______ than an object going downhill. momentum

  16. An object will stay at rest until put in motion or continue in motion until that motion is stopped or the direction is changed. This is called __________. inertia This is why rocks will fall off the back of a wagon if it is jerked forward or your body will jerk forward if a car stops.

  17. More friction _______an object’s motion? slows

  18. More friction _______an object’s motion? slows

  19. Essential Questions???????? 1. What are some spinoffs that we benefit from on earth? 2. How has Alabama contributed to the space industry? 3. What was the first manned mission to land on the moon? 4. What is the International Space Station (ISS)?

  20. Satellites in Earth’s orbit use ____________ to maintain movement? Earth’s gravitational force

  21. List some natural satellites found in space? Moons, comets, asteroids, and meteors

  22. Man-made satellites are put in space by ________ and are put into Earth’s ________. Rockets orbit

  23. Man-made satellites help us _______, _________, ________, ___________, and________. Forecast weather, transfer telephone calls oversea, assist in navigation of ships, monitor crops, and support military activities

  24. Some examples of technological advances and other benefits from space exploration are _______. Velcro, powdered drink mixes, smoke detectors, pacemakers, and joy stick controllers

  25. __________ was the first mission to land on the moon. Apollo 11

  26. During the unmanned Mars missions _____________ were used to explore the planet. Mars Rovers (space probes)

  27. The ___________ is a station that orbits the Earth, where scientist from different nations live and conduct research. MIR International Space Station

  28. What are some of Alabama’s contributions to the space industry? Redstone Arsenal in Huntsville, Saturn V rockets, Space telescope, Marshall team and the Hubble telescope, Dr. Mae Jeminson, Space and Rocket Center in Hunstville

  29. Essential Questions???????? 1. What is the sun? 2. What is the relative order of the planets from the sun in our solar system? 3. How are comets, asteroids, and meteors alike/different? 4. Why is Earth the only place that can support living things?

  30. The sun is a medium sized _______ in our solar system. star

  31. Our solar system contains 1 _______, _________ planets, and ____ dwarf planets? Star, 8, 3

  32. The inner planets are___________________________________________________________________________________________________. Mercury, Venus, Earth, and Mars

  33. The outer planets are___________________________________________________________________________________________________. Jupiter, Saturn, Uranus, and Neptune

  34. The inner planets are also know as the ___________ planets. Rocky planets

  35. The outer planets arealso known as the _________ planets. Gas

  36. Earth is able to support life because ______________________. of its location from the sun and it is the only planet that maintains water.

  37. Match the following definitions. -Tails made of ice and dirt and travel in an elliptical orbit around the sun. -Small rocks that orbit the sun -rocks that fall from the suns orbit and enter the Earth’s atmosphere -A meteor that hits Earth’s surface Meteor Meteorite Asteroid Comet

  38. Most asteroids are found between _________ and ___________ and are called the ____________________. Mars Jupiter asteroid belt

  39. Meteors that fall to the Earth are sometimes called ______________ because friction causes them to burn as they enter the atmosphere giving off a fiery glow. shooting stars

  40. http://www.kidsastronomy.com/solar_system.htm