Topic: 7.5-7.6 Matter and Energy
Quiz by Grade 7 Science - Texas Education Agency
Grade 7
Science (2017)
Texas Essential Knowledge and Skills (TEKS)
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8 questions
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- Q1Hay is made up of organic compounds. What are the main elements in many organic compounds?Sodium, hydrogen, nitrogenRadon, oxygen, heliumCarbon, hydrogen, oxygenHelium, carbon, sodium60s7.6
- Q2Students in a science class made ball-and-stick models of the substances they were studying. The key shows the elements the students used in their models. Which model represents an organic compound?#texas/62c6244f-5fe8-458c-9627-41b7ee665660/C.png#texas/62c6244f-5fe8-458c-9627-41b7ee665660/A.png#texas/62c6244f-5fe8-458c-9627-41b7ee665660/B.png#texas/62c6244f-5fe8-458c-9627-41b7ee665660/D.png60s7.6
- Q3A student listed how different parts of the body work to aid in the digestion of food. Which of the following is a chemical change that occurs to the food?None of the aboveThe reduction in size of food particles as food is chewedThe movement of food to the stomach after food is swallowedThe breakdown of molecules of food by enzymes and acid in the stomach60s7.6
- Q4Many processes occur in the digestive system. Which process is best classified as a physical change?Teeth grinding an almond into smaller pieces in the mouthSaliva converting the starch molecules in crackers into simple sugarsBacteria converting lactose into simple sugars in the intestinesDigestive enzymes breaking down proteins into smaller fragments60s7.6
- Q5The flow of energy in some Australian food chains is modeled in the energy pyramid below. Based on the model, which consumers would receive the greatest amount of energy captured by the producers in their food chains?ChuditchWedge-tailed eaglesEucalyptus treesRing-tailed opossums60s7.5b
- Q660s7.6
- Q7Four students were given a list of compounds and asked to identify which ones are organic. Which student correctly identified the organic compounds in the list?Student NStudent KStudent MStudent L60s7.6
- Q8A student researching a northern forest ecosystem learns the following information about feeding relationships in the ecosystem. Which food web best represents the flow of energy in these feeding relationships?#texas/f3c005df-fb1f-4add-9ee4-b490d07e48f6/A.png#texas/f3c005df-fb1f-4add-9ee4-b490d07e48f6/D.png#texas/f3c005df-fb1f-4add-9ee4-b490d07e48f6/C.png#texas/f3c005df-fb1f-4add-9ee4-b490d07e48f6/B.png60s7.5b
