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Week 5 FIFTH GRADE SCIENCE EOG PREP HW: Use your strategies (underlining, circling, boxing, and/or highlighting key words; drawing pictures to understand the question and drawing pictures for each answer choice; using organizational diagrams, ect) to answer these questions. Prove why you know you have the right answer and cross off the word or words that make other answer choices wrong. ONLY 6 QUESTIONS THIS WEEK (Matter, Energy, F &M, Weather, Eco, & Liv Org). YOU MUST WRITE A SENTENCE EXPLAING HOW YOU KNOW YOUR ANSWER IS CORRECT TO RECEIVE CREDIT. PLEASE have your parents sign that they have seen your HW complete at the bottom. TUESDAY 5/10 1. Which will evaporate faster? A. a puddle on a rainy day B. a puddle on a sunny day C. a puddle on a cloudy day D. a puddle on a snowy day WEDNESDAY 5/11 1. Jennifer left her bike outside, buried in snow. In the spring, when the snow melted, she found her bike covered in rust. Which best describes the change to the bike? A. It was a chemical change, because the bike was a different color. B. It was a chemical change, because the rubber tires were deflated. C. It was a chemical change, because rust can be removed from the metal. D. It was a chemical change, because rust is a new substance on the metal. THURSDAY 5/12 1. Which factor speeds up the process of evaporation during the water cycle? A. low humidity B. low air pressure C. high air pressure D. high temperature FRIDAY 5/13 1. Which example best describes a physical change? A. iron rusting B. charcoal burning C. an ice cube melting D. a marshmallow burning 2. Anya placed an ice cube on the sidewalk on a warm day. The ice cube soon melted to form a puddle. What process caused the ice cube to melt? A. Heat transferred through the ice cube by convection. B. Heat transferred from the air to the ice cube by radiation. C. Heat transferred from the air and the pavement by conduction. D. Heat transferred through the ice cube into the pavement by conduction. 2. Which best explains how Earth’s climate is impacted by convection? A. Convection helps move thermal energy around the Earth. B. Convection helps cool the Earth and the atmosphere around it. C. Convection continuously pumps cool energy through the oceans. D. Convection stops the flow of cool air and maintains warm weather. 2. Which best describes how heat is transferred? A. Heat only flows within individual substances. B. Heat flows from a warmer substance to a cooler substance. C. Heat flows from a cooler substance to a warmer substance. D. Heat flows in many different directions between substances. 2. Which best explains what happens to most materials when they are heated? A. They expand. B. They contract. C. They change color. D. They double in size. 3. Two toy race cars are going to be raced down the same ramp. Which information is most helpful in predicting which car will win the race? A. length of the ramp B. volume of the cars C. slope of the ramp D. mass of the cars 3. What causes a ball to move through the air when it is thrown? A. heat B. force C. friction D. gravity 3. When is friction needed during the course of motion? A. to speed up motion B. to slow down motion C. to keep motion at the same speed D. to keep motion in the same direction 3. Two cars, a heavier car and lighter car, are pushed with equal force, and are affected by the same amount of friction. Which best describes the effect on the distance the cars will move? A. The lighter car will travel a longer distance because it has more mass. B. The heavier car will travel a shorter distance because it has more mass. C. The lighter car will travel a shorter distance because its wheels will roll more quickly. D. The heavier car will travel a longer distance because its wheels will roll more slowly. 4. Which best explains why wind occurs? A. Wind is produced by precipitation. B. Wind is produced by tropical storms. C. Wind is produced by differences in cloud cover. D. Wind is produced by differences in air temperatures. 4. Which describes how wind speed is affected by weather? A. Rainy weather causes greater wind speeds. B. Warmer weather causes greater wind speeds. C. Differences in air pressure cause greater wind speeds. D. Small temperature changes cause greater wind speeds. 4. Why do most weather systems in the United States move from west to east? A. The West Coast is at a higher elevation than the East Coast, and weather systems go downhill. B. Prevailing winds carry weather systems to the east across most of the United States. C. The West Coast is warmer, and weather systems move from warmer to colder places. D. Mountain ranges prevent the movement of weather systems from east to west. 4. Which best explains how El Niño affects the jet stream? A. The jet stream is pushed north and results in increased precipitation. B. The jet stream is pushed south and results in increased precipitation. C. The jet stream is pushed north and results in decreased precipitation. D. The jet stream is pushed south and results in decreased precipitation. 5. What is the main difference between marine and freshwater ecosystems? A. the amount of animals B. the amount of plants C. the amount of rocks D. the amount of salt 5. In which category are all living things most directly dependent upon the sun for energy? A. carnivores B. producers C. herbivores D. decomposers 5. Which is an example of a decomposer? A. grass B. cactus C. flower D. mushroom 5. Which will most likely result if large areas of trees in a forest are removed to build neighborhoods? A. There would be an increase in the loss of habitats. B. There would be an increase in the number of predators. C. There would be an increase in food resources for animals. D. There would be an increase in the number species of plants. 6. Which best describes humans? A. Humans are made up of many cells and all cells combined carry out a single life process. B. Humans are made up of many cells and all cells combined carry out life processes. C. Humans are made up of one single cell that carries out a single life process. D. Humans are made up of one single cell that carries out all life processes. 6. What roles do the muscular and respiratory systems serve in the body when someone lifts weights? A. The muscular system allows the person to lift the weights, while the respiratory system provides oxygen to the body. B. The muscular system provides oxygen to the body, while the respiratory system allows the person to lift the weights. C. The muscular system provides nutrients to the blood, while the respiratory system provides sweat to cool the body. D. The muscular system provides sweat to cool the body, while the respiratory system provides nutrients to the blood. 6. Melissa accidentally touches a hot surface and then quickly pulls her hand away. Which two systems in the human body were involved with her action and reaction? 6. Which best compares the respiratory system to the circulatory system? A. The respiratory system transports oxygen to cells, while the circulatory system provides oxygen for cells. B. The respiratory system provides oxygen for cells, while the circulatory system transports oxygen to cells. C. The respiratory system breaks down food for cell energy, while the circulatory system rids the body of waste. D. The respiratory system rids the body of waste, while the circulatory system breaks down food for cell energy. A. nervous and muscular B. skeletal and circulatory C. nervous and respiratory D. muscular and respiratory