1 / 18

Unit 1 Review

Unit 1 Review. Controlled Experiments. Involve one variable that changes Variables Independent – the variable you are testing Dependent – the variable that changes as a result, the data you collect Controlled – the variables that stay the same in all setups Groups

dalexandria
Download Presentation

Unit 1 Review

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Unit 1 Review

  2. Controlled Experiments • Involve one variable that changes • Variables • Independent – the variable you are testing • Dependent – the variable that changes as a result, the data you collect • Controlled – the variables that stay the same in all setups • Groups • Control – the group that does not have the variable being tested (or at normal conditions) • Experimental – groups that have different levels of the variable being tested.

  3. A controlled experiment allows a scientist to isolate and test • A. A logical conclusion • B. A variety of information • C. A single variable • D. Several Variables

  4. The development of an experimental research plan should NOT include: • A. A list of safety precautions for the experiment • B. List of equipment needed for conducting the experiment • C. Procedure for the use of technologies needed for the experiment • D. Conclusion based on the data expected to be collected during the experiment

  5. State the hypothesis Identify the independent variable Identify two conditions that should stay the same in all experimental setups State one example of the data that would support your hypothesis While outside raking leaves, you notice several slugs underneath fallen leaves and logs. Describe some parts of an experiment to determine the preference of slugs for light or darkness. Make sure you:

  6. Characteristics of life • Living things are made of cells • Living things grow and develop • Living things have levels of organization • Living Things reproduce • Living things use energy • Living things respond to their environment • Groups of Living things evolve

  7. Life Functions • Nutrition (Ingestion, Digestion) • Transport • Excretion • Reproduction • Respiration (Energy) • Synthesis • Regulation • Growth • Metabolism

  8. A characteristic of all living things is that they • A. Use carbon dioxide • B. Use atmospheric oxygen • C. Carry on metabolic Activities • D. Are capable of locomotion

  9. It is known that laboratory rats do not require vitamin C in their diet. However, vitamin C is found in their tissues. The vitamin C is present due to a process known as • A. Excretion • B. Locomotion • C. Synthesis • D. Osmosis

  10. Which term includes all the activities required to keep an organism alive? • A. Metabolism • B. Growth • C. Nutrition • D. Excretion

  11. An activity carried on by every living plant and animal is: • A. Reproduction • B. Respiration • C. Photosynthesis • D. Transpiration

  12. An organelle differs from an organ in that an organelle • A. Is a substructure of a cell • B. Contains one specific type of tissue • C. Is larger than an organ • D. Cannot be stained

  13. Write the structure listed below in order from least to most complex • Organ • Cell • Organism • Atom • Organelle • Molecule • Tissue • Organ System

  14. Homeostasis • Maintaining a stable internal environmental in a changing external environment • Insulin – lowers blood sugar • Stomata – Guard cells get larger the stomata (openings) are smaller so less water is lost from plants on a hot day • Sweat – evaporates to lower our body temperature

  15. Homeostatic regulation of the body is made possible through the coordination of all body systems. This coordination is achieved mainly by: • A. Skeletal and excretory systems • B. Respiratory and Reproductive Systems • C. Nervous and endocrine systems • D. Circulatory and digestive systems

  16. Explain how guard cells in both land and water plants help maintain homeostasis. In your answer be sure to: • Identify one function regulated by guard cells in leaves • Explain how guard cells carry out this function

  17. Measurement • Metric System – prefixes • K H Da Base d c m • Mass – grams – triple beam balance • Volume – liter – graduated cylinder/beaker • Length – meters – ruler • ** Know parts of the microscope

  18. The width of a human hair is 0.1 mm. The width of this hair in meters is: • A. 1 meter • B. 10 meters • C. 0.001 meters • D. 0.0001 meters

More Related