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characteristics of Living things
Posted by Angela Rosell on 9/10/2021- Cell-the smallest unit that can perform all life processes
- Stimulus- anything that causes a reaction or change in an organism or any part of an organism.
- Homeostasis-the maintenance of a constant internal state in a changing environment
- Asexual reproduction-reproduction that does not involve the union of sex cells an in which one parent produces offspring that are genetically identical to the parent.
- Sexual reproduction-reproduction in which the sex cells from two parents unite to produce offspring that share traits from both parents.
- Spontaneous Generation-the mistaken idea that living organisms arise from nonliving sources.
- Classification-process of grouping things based on their similarities.
- Taxonomy-scientific study of how things are classified.
- Species-a group of organisms that can mate and produce offspring that can also mate and reproduce.
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Vocabulary
Posted by Angela Rosell on 8/16/2021-
Motion
Posted by Tracy Oglesby on 3/25/20221. Reference Point - the starting point you choose to describe the location or position of an object
2. Position - an object's distance in a certain direction from a reference point
3. Motion - the process of changing position
4. Displacement - the difference between the first position and the final position of an object
5. Speed - the measure of the distance an object travels per unit of time
6. Constant Speed - the rate of change in position in which the same distance is traveled each second
7. Instantaneous Speed - speed at a specific instant in time
8. Average Speed - the total distance traveled divided by the total time taken to travel that distance
9. Velocity - the speed and direction of a moving object
10. Acceleration - a measure of the change in velocity during a period of time
1. Quantitative - numerical information (6 feet tall, 120 degrees Celsius, 2 Liters)2. Qualitative - information that is descriptive; in the form of adjectives; collected by your senses (hot, furry, the male lions were aggressive, the liquid flows smoothly)3. Scientific Inquiry - The process of discovery in science; ways that scientists study the natural world4. Hypothesis - a possible explanation for a scientific problem or question you have; educated guess5. Manipulated (Independent) Variable - also called independent variable; the one change that is tested in an experiment6. Responding (Dependent) Variable - also called the dependent variable; the result that is being measured in an experiment7. Control group - One of the groups in the experiment that is left untested. An experiment needs one control group and several experimental groups.8. Controlled Variable - also called controls; the many factors that stay the same throughout the experiment9. Data - information you collect in an experiment; may be qualitative or quantitative10. Scientific Law - a statement that explains what will happen every time the same conditions are present.11. Scientific Theory - a well-tested explanationRecent
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