Unit 1 Name: _____________________________________________ Block: ______ Unit 1 - Study Guide Characteristics of Life Identify which characteristic of life is illustrated by each of the following statements. Characteristics of life: made of cells, have genetic material, reproduce, maintain homeostasis, respond to stimuli, grow & develop, obtain & use energy, evolve (change over time) 1._______________________ “That boy shot up five inches in only one year.” 2._______________________ “Our cat had a litter of kittens yesterday.” 3._______________________ “Eat a good breakfast and you will be able to run longer.” 4._______________________ “When that car pulled into the driveway, my cat ran to hide under the porch.” 5._______________________ Your body normally maintains a temperature of 98.6OF. 6._______________________ A giraffe uses its long neck to eat from the high branches of a tree. 7. How many characteristics of life must something have in order to be considered a living thing? For questions 8-11 MATCH THE VOCAB WORD FROM THE WORD BANK WITH ITS DEFINITION: BIOLOGY HOMEOSTASIS STIMULUS EVOLUTION 8. A signal to which an organism responds _____________________________ 9. The “science of life” that studies all living things is called _____________________ 10. The process by which organisms as a group change over time; Process by which modern organisms have descended from ancient organisms _______________________ 11. Process by which organisms maintain a relatively stable internal environment _______________________ Scientific Method and Design of Experiments 12. Which type of reproduction produces genetically identical offspring? (circle) sexual asexual Which type of reproduction produces genetically different offspring? (circle) sexual asexual Which type of reproduction requires two parents? (circle) sexual Which type of reproduction requires only one parent? (circle) 13. Which type of data uses observations from our senses? (circle) Which type of data uses numerical information? (circle) asexual sexual asexual qualitative quantitative qualitative quantitative Unit 1 14. What are the steps of the scientific method? 15. Does the temperature of the environment that an alligator’s egg is hatched determine whether the alligator will be a male or female? a) Write a hypothesis for this question: If… Then... b) What is the independent variable in this experiment? a. alligator’s egg b. temperature of the environment c. alligator gender c) What is the dependent variable in this experiment? a. alligator’s egg b. temperature of the environment c. alligator gender d) What would you use as a control or control group in this experiment? e) What would you use as three constants in this experiment? 16. Why do scientists prefer to use the International System (SI) of Units? 17. Which SI base unit would I use to measure the mass of the science textbook? a. ounces (oz) b. pounds (lb) c. kilograms (kg) 18. What base unit of the SI system would I use to measure the height of a plant? a. inches (in) b. centimeters (cm) c. meters (m) Unit 1 Read the following lab scenario and then answer the questions. SpongeBob and Patrick love to go jellyfishing. Both Patrick and SpongeBob usually caught the same amount of jellyfish. They wondered if a new brand of jellyfish bait would help them catch more jellyfish. To test their idea, they bought a large container of the new bait for their next three trips to use at their top-secret fishing spot. SpongeBob fished without any bait, while Patrick fished with the new bait. Both of them kept track of how many jellyfish they caught in 30 minutes. This information is recorded on the table. SpongeBob 25 18 26 Patrick 24 28 19 19. What was being tested? In other words, what is the question SpongeBob and Patrick are trying to answer? 20. Which person was the control? a. Spongebob b. Patrick 21. What is the independent variable? a. type of jellyfish bate b. Spongebob c. # of jellyfish caught 22. What is the dependent variable? a. type of jellyfish bate b. Spongebob c. # of jellyfish caught 23. Based on the data, what conclusion should Patrick and SpongeBob make about the new bait? 24. If you were to create a graph of the above data table, which variable would go on the x-axis? Be specific include labels and units. 25. If you were to create a graph of the above data table, which variable would go on the y-axis? Be specific include labels and units. Unit 1 Practice Analyzing a Graph 26. This line graph compares the growth of plants that were kept in the sun for different amounts of time. a) On Day 7, the plants kept in the sun for 3 hours were how tall? _________ b) On Day 7, the plants kept in the sun for 6 hours were how tall? _________ c) On Day 10, the plants kept in the sun for 9 hours were how tall? ________ d) On Day 11, the plant that was grown with 1 hour of sunlight was how tall? ________ e) Based on the graph, the plant grows best in what amount of sunlight? __________ f) What was the Independent Variable of this experiment? a. height (mm) b. day the plant was measured g) What was the Dependent Variable of this experiment? a. height (mm) b. day the plant was measured Lab Rules and Lab Safety Equipment 27. List 3 of the safety items/equipment in our classroom:
