7th Science Quiz. Instructions: Seventh Grade Science Quiz. Practice Test. Copyright Measured Progress, All Rights Reserved

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1 7th Science Name: Instructions: Copyright Measured Progress, All Rights Reserved

2 : 7th Science 1. The invertebrate phylum Mollusks includes which animals? A. crickets and grasshoppers B. oysters and clams C. euglenas and paramecia D. flatworms and roundworms 2. According to cell theory, all living cells come from A. other cells. B. eggs. C. specialized tissue. D. nuclei. Use the information in the box below to answer question 3. Suppose some scientists traveling on the ocean came upon a small island that had not been explored before. They discovered a new kind of animal with colored fur. Since the island was isolated, they could count all of these animals. They discovered that there were exactly 100 of the colored animals and that 25 animals had green fur, while the remaining 75 had blue fur. 3. Which is the best assumption the scientists can make? A. Blue fur is dominant. B. Green fur is dominant. C. Blue fur is recessive. D. Green fur and blue fur are codominant. 2

3 : 7th Science 4. Fertilization takes place when a sperm A. enters an egg. B. becomes an egg. C. becomes an embryo. D. begins to divide. 5. Muscle cells use large amounts of energy. Which structures would be more abundant in an animal s muscle cells than in its other cells? A. chromosomes B. Golgi bodies C. lysosomes D. mitochondria 6. Sam is investigating the density of sand from his favorite beach. Which tools should he use? A. beaker and balance scale B. beaker, balance scale, and metric ruler C. graduated cylinder and metric ruler D. graduated cylinder and balance scale 3

4 : 7th Science Use the graph below to answer question This graph is a plot of the average temperature and precipitation during the year at the same location. The graph shows the temperature and rainfall in a A. tropical rain forest. B. deciduous forest. C. desert. D. tundra. 4

5 : 7th Science Use the drawings below to answer question 8 8. A student planted three bean seeds in each of three identical flowerpots. Each flowerpot contained 50 ml of soil. The student added 15 ml of water to each flowerpot and set one pot on the windowsill, one under a grow light, and one on the kitchen table. The student watered each plant with 15 ml of water every three days for four weeks. The effect of which variable was being studied? A. amount of water. B. size of the pot. C. amount of light. D. amount of soil. 5

6 : 7th Science Use the diagram below to answer question Which process is illustrated in the diagram? A. photosynthesis B. respiration C. diffusion D. meiosis 6

7 : 7th Science The diagram below shows the types of plants that grew in a farm field in the 200 years after it was abandoned. Different types of plants appeared and disappeared during this time. 10. How many years after the field was abandoned did new organisms begin to grow on this farmland? A. 1 B. 3 C. 21 D In Montana, where the grassy plains provide habitat to a large populations of rabbits, a drought of several years left large areas of exposed brown soil. Originally, the rabbit population was made up of a mix of both gray and brown rabbits. Hawks are the major predator that eats rabbits. Which change would probably happen? A. The rabbits would all disappear. B. The percent of gray rabbits would increase. C. The percent of brown rabbits would increase. D. The total number of rabbits would increase. 7

8 : 7th Science 12. What would be the best way to determine the weight of a dog using a floor scale? A. put the dog directly onto the floor scale B. place an object the same size as the dog on the floor scale and weigh it C. weigh yourself and the dog on the floor scale D. first weigh yourself; then weigh yourself while holding the dog 13. There are four types of blood: A, B, AB, and O. Diane and John collected information about students blood types in their school. Which of the types of graphs would be appropriate to show what they found? A. Graph 1 only B. Graph 3 only C. Graph 1 or 2 D. all three graphs 14. Huntington s disease, a genetic disease of nerves and muscles, is caused by a single dominant gene. If a woman with the genotype Hh and a man with the genotype hh have a child together, what are the chances that their child will have Huntington s disease? A. 0% B. 25% C. 50% D. 100% 8

9 : 7th Science Use the diagram below to answer question This diagram shows a food web. Which of the following is a food chain from this web? A. foxes rabbits plants B. plants rabbits mice C. hawks rabbits insects plants D. plants insects birds hawks 9