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

Size: px

Start display at page:

Esmond Stanley Francis
5 years ago
Views:

7th Science B Practice Name: Instructions:

2 : 7th Science B Practice 1. Which biome is found on mountains above the tree line? A. grassland B. deciduous forest C. tundra D. tropical forest 2. Julia wondered if light has an effect on the growth of bacteria. To test her idea, which variable should remain constant? A. temperature B. light intensity C. time of day D. shape of the container 3. In a certain plant, the gene for long stems (L) is dominant over the gene for short stems (l). If a pure long-stemmed plant (LL) is crossed with a pure short-stemmed plant (ll), which statement describes the offspring plants that will result from this cross? A. All of the plants will have long stems. B. All of the plants will have short stems. C. Half of the plants will have short stems. D. Half of the plants will have stems of medium length. 4. The major organs of the respiratory system are A. liver, stomach, and pancreas. B. uterus, ovaries, and cervix. C. trachea, lungs, and diaphragm. D. heart, blood, and vena cava. 2

3 : 7th Science B Practice 5. A pyramid can be used to illustrate the flow of energy through a food chain. Which shows the correct order of the organisms in an energy pyramid? A. B. C. D. 6. Which organism s body form is best described as a tube within a tube? A. sponge B. jellyfish C. earthworm D. clam 3

4 : 7th Science B Practice 7. Which is tested by performing a controlled experiment? A. a fact B. an inference C. a conclusion D. a hypothesis 8. Which is the primary means by which drugs travel throughout the body? A. bloodstream B. muscles C. nerve cells D. bone cells 9. A cell with damaged ribosomes will have difficulty in manufacturing A. carbohydrates. B. lipids. C. nucleic acids. D. proteins. 10. Scientists think that some birds know when to migrate in the fall because they A. see the changing leaf colors. B. feel the changing direction of the wind. C. see ice on the lakes and streams. D. respond to the shorter days. 4

5 : 7th Science B Practice 11. Which structure is found in a plant cell but not in an animal cell? A. nucleus B. cell membrane C. cell wall D. chromosomes 12. A person who has a liver that does not function properly may have difficulty digesting A. proteins. B. fats. C. carbohydrates. D. nucleic acids. 13. The role of the mitochondria in a living cell is to A. produce energy for the cell. B. act as the control center of the cell. C. store materials in the cell. D. rid the cell of waste materials. 14. For his science project, Alan began a study of maple trees. He noticed many differences among the maple trees near his school. Which tree characteristic would vary the least? A. height B. number of leaves C. type of seeds D. trunk width 5

6 : 7th Science B Practice 15. Biomes with the shortest vegetation are usually located in areas of A. low temperatures and high rainfall. B. high rainfall and moderate temperatures. C. moderate temperatures and low rainfall. D. low rainfall and low temperatures. 16. 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 17. How much genetic material is found in a cloned cell as compared to the original cell? A. twice as much B. the same amount C. half as much D. one-fourth as much 18. Which part of a cell contains digestive chemicals for breaking down large food molecules? A. nucleus B. vacoule C. lysosome D. mitochondria 6

7 : 7th Science B Practice 19. Diabetes is a condition associated with a malfunction of the A. kidneys. B. pancreas. C. liver. D. gallbladder. Use the plant diagram below to answer question Which plant part makes most of the plant s food? A. part A B. part B C. part C D. part D 7

8 : 7th Science B Practice 21. Which question cannot be answered using the methods of science? A. How many kinds of tree frogs are there in Georgia? B. What are some of the effects of pollution on apple trees? C. Are roses more beautiful than butterflies? D. Which brand of paper towels absorbs the most water? 22. Which of the following is not an adaptation that contributes to the survival of a species? A. coyotes hunting in packs instead of alone B. a harmless insect looking very much like a poisonous insect C. bacteria developing antibiotic resistance D. a parakeet learning to talk for its owner 23. Jim and James want to know why they see bumblebees in the summer but not in the winter. To solve the problem, which step of the scientific method should they do first? A. state the problem B. gather information C. draw a conclusion D. perform an experiment 24. Which body system produces hormones that regulate body changes? A. endocrine B. digestive C. circulatory D. respiratory 8

9 : 7th Science B Practice 25. Before conducting an experiment on substances that alter the heart rate of daphnia, Mr. Smith s class found the average heart rate of daphnia. In scientific terms, the average heart rate of daphnia is known as the A. hypothesis. B. experiment. C. control. D. conclusion. 26. All living cells contain A. a cell wall. B. a nucleus. C. chloroplasts. D. genetic materials. 27. In pea plants, tall is dominant over short. What size pea plants will result when two short plants are crossed? A. short plants only B. short and tall plants C. tall plants only D. midsized plants 28. The lynx, a type of cat about three feet long, lives in the forests of North America along with gray squirrels, snowshoe rabbits, white tailed deer, and deer mice. Which animal would not be in the same food web as the lynx? A. gray squirrel B. snowshoe rabbit C. white tailed deer D. deer mouse 9

$If a guinea pig with a gene for black fur and a gene for white fur mates with a guinea pig with two genes for white fur, what fraction of their offspring would likely have black fur? A. B. C. D.$

10 : 7th Science B Practice 29. In guinea pigs, the gene for black fur is dominant over the gene for white fur. If a guinea pig with a gene for black fur and a gene for white fur mates with a guinea pig with two genes for white fur, what fraction of their offspring would likely have black fur? A. B. C. D. Use the diagram below to answer question Based on its features and organelles, the cell in the diagram belongs to which kingdom of living organisms? A. Monerans B. Protists C. Plants D. Fungi 10

HCMS_Science_7th Grade

HCMS_Science_7th Grade Name: Instructions: If testing on-line please enter your let password which is -- hcms Copyright 2000-2002 Measured Progress, All Rights Reserved : 2 : 1. Moths that live in forests tend to rest while