# Variables, Controls & Constants: Question Preview (ID: 6111)

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 What is the independent variable in this question: Does the amount of fertilizer make a plant grow taller? a) height of plant b) amount of fertilizer c) type of fertilizer d) type of plant What is the dependent variable in this problem: what brand of gum will make the biggest bubble? a) brand of gum b) flavor of gum c) person chewing d) size of bubble Which is the control: Sue watered plant A with water; plant B with vinegar, and plant C with ammonia to find out how acids and bases affected plant growth. a) Vinegar - acid b) Ammonia - base c) Water - neutral d) Type of plant used How does the shape of an ice cube affect how soon it melts? What is the dependent variable? a) Shape of the ice cube b) Temperature of the room c) Melting rate of the ice cubes d) Size of the ice cube How does the shape of an ice cube affect how soon it melts? What is the independent variable? a) Shape of the ice cube b) Temperature of the room c) Melting rate of the ice cubes d) Size of the ice cube Which is the constant: Sue watered plant A with water; plant B with vinegar, and plant C with ammonia to find out how acids and bases affected plant growth. a) Vinegar - acid b) Type of plant c) Water - neutral d) Ammonia - Base What is the dependent variable in this question: Does the amount of fertilizer make a plant grow taller? a) height of plant b) amount of fertilizer c) type of fertilizer d) type of plant What is a constant you would need to have to make this a valid experiment: Does the amount of fertilizer make a plant grow taller? a) height of plant b) amount of fertilizer c) growth rate of plant d) type of plant What is the independent variable in this problem: what brand of gum will make the biggest bubble? a) brand of gum b) flavor of gum c) person chewing gum d) size of bubble If I throw food at lunch, will I get lunch detention? What is the independent variable? a) lunch detention b) type of food I have to throw c) people I sit with at lunch d) throwing food
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