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________ is done when force applied to an object moves the object : A.Transformation B.Biological Kindness C.Conservation D.Work - Correct Answers ✅✅D.Work A windmill is used to create electrical energy. This change from one form of energy to another is called: A. Energy transformation B. Kinetic energy C. Mechanical energy D. Electrical energy - Correct Answers ✅✅A. Energy transformation I put a Pop-Tart in the toaster. Electrical energy is transformed to thermal energy to make my Pop-Tart hot. Based on the Law of Conservation of Energy, once my Pop-Tart starts to cool, is energy lost?: A. Yes. All the energy was used in the conversion of energy. B. No. Energy cannot be created or destroyed. C. Yes. The Pop-Tart is no longer hot.
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D. No. Energy can be created, but it cannot be destroyed - Correct Answers ✅✅B. No. Energy cannot be created or destroyed. At a constant velocity, a 5kg bag of cement is pulled straight up a 7m wall. How much work is done by the puller? (Gravitational pull is 9.8m/s2, W(J)=F(N)*D(m) A. 343 m/s B. 343 N C. 340 J D. 343 J - Correct Answers ✅✅D. 343 What are the three phases or states of matter?: A. Liquid, Gas, Ice B. Liquid, Solid, Gas C. Gas, liquid, Slippery D. Liquid, Gas, hard - Correct Answers ✅✅B. Liquid, Solid, Gas Iron+ Oxygen->Iron Oxide (Rust) 2Fe+30₂ -> Fe₂O₃ Iron Oxide, formed from Iron and Oxygen, is a new:
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B. A control group is selected and every other individual is used for data. C. The population is divided into subgroups. Each subgroup has several individuals that are selected. D. The population is divided into age groups and individuals are chosen at random from within those age groups. - Correct Answers ✅✅A. Individuals are randomly selected from the population. Every individual has the same probability of being selected. Which of the following depictions best represents evolution and why? Formation of a mountain over time A husky dog descended from a wolf A. The formation of a mountain over time. The mountain changed and formed. It evolved. B. The husky dog. The dog is the product of modifications of inheritance over time. - Correct Answers ✅✅B. The husky dog. The dog is the product of modifications of inheritance over time.
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Your body turns food into sugar by an initial chemical reaction from chemicals in your: Read the following passage: It all starts with that first bite of pizza. Your teeth tear off that big piece of crust. Your saliva glands start spewing out spit like fountains. Your molars grind your pizza crust, pepperoni, and cheese into a big wet ball. Chemicals in your saliva start chemical reactions. Seemingly like magic, starch in your pizza crust begins to turn to sugar! A couple of more chews and, then, your tongue pushes the ball of chewed food to the back of your throat. A trap door opens, and there it goes, down your gullet! Your Digestive System. (2012). Discovery Kids. Retrieved October 9, 2013, from http://kids.discovery.com/tell-me/science/body-systems/your- digestive-system
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C. Decomposers D. Producers - Correct Answers ✅✅D. Producers Atoms, Molecules, Cells, Tissues, Organs, Organ Systems, Organism The above list best describes: A. The human body B. The Organization of Life C. Structures D. Biology - Correct Answers ✅✅B. The Organization of Life The Water Cycle Read the following excerpt from Wikipedia: The water cycle involves the exchange of energy, which leads to temperature changes. For instance, when water evaporates, it takes up energy from its surroundings and cools the environment. When it condenses, it releases energy and warms the environment. These heat
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exchanges influence climate. The evaporative phase of the cycle purifies water which then replenishes the land with freshwater. The flow of liquid water and ice transports minerals across the globe. It is also involved in reshaping the geological features of the Earth, through processes including erosion and sedimentation. The water cycle is also essential for the maintenance of most life and ecosystems on the planet. The water cycle is responsible for: A. Erosion B. Evaporation C. Transporting minerals D. Maintenance of life and ecosystems E. All of the above - Correct Answers ✅✅E. All of the above Seasons on Earth are caused by: A. Proximity to the equator B. Zeus
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Which of the following items are contained in our Solar System? A. Jupiter B. Moon C. Earth D. Asteroids E. All of the above - Correct Answers ✅✅E. All of the above Earth has a natural satellite A. True B. False - Correct Answers ✅✅A. True : The moon There is risk of damaging the carbon cycle (Global Warming), by: Read the following passage from KidsGeo.com regarding the Carbon Cycle: "...This important balance [of carbon] has been altered significantly in the past century as
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humans have begun using fossil fuels to produce energy. By burning the Earth's store of carbon, mankind is able to create the energy needed to operate our communities. However, we must be careful as we do so. By releasing more carbon into the atmosphere than is being locked up, we risk causing damage to the delicate carbon cycle." The Carbon Cycle. (2013). Geography for kids, The study of our Earth. Retrieved October 17, 2013, from http://www.kidsgeo.com/geography- for-kids/0146-ocean-tides.php There is risk of damaging the carbon cycle (Global Warming), by: A. Getting energy to operate our communities B. Releasing more carbon into the atmosphere C. Producing energy D. Digging up fossil - Correct Answers ✅✅B. Releasing more carbon into the atmosphere
