1) In an investigation, 50 mL of sand is placed in one glass beaker and 50 mL of water is poured into a second glass beaker. Temperature probes in the sand and the water are used to record the temperature of each type of matter. The beakers are then placed under two lights. What is the tested variable? a) The color of the lightbulb. b) The size of the light bulb. c) The matter in the beakers. d) The size of the beakers. 2) A student is conducting an investigation to find out which food his dog likes best. What is the tested variable in his investigation? a) The color of his dog’s food dish b) The kind of food he gives. his dog c) The amount of food he gives his dog d) The time of day he feeds his dog 3) A experimental investigation begins with a question. Next, the investigator predicts an answer to the question. This prediction is called the— a) hypothesis b) conclusion c) data d) procedure 4) Which of the following is the testable question for an experimental investigation? a) What is the freezing point of salt water? b) How fast can hummingbirds flap their wings? c) What is the mass of a glass beaker filled with 500 mL of water? d) How does changing the height of a ramp affect the distance a toy car travels? 5) The information gathered during an investigation is called— a) hypothesis b) data c) conclusion d) control variable 6) Which of these questions could be answered from the results of the investigation pictured a) Does shape affect which cheese a mouse likes best? b) How fast will it take the mouse to find a piece of cheese in a maze? c) Which type of cheese does a mouse prefer: cheddar or Swiss? d) Can the mouse see the Swiss cheese better? 7) Students were planning an experimental investigation. They wrote down a testable question. What would be the next step in their investigation? a) Complete the experiment b) Formulate a hypothesis c) Draw a conclusion d) Analyze collected data 8) In an investigation, Jackson tested to see how the size of rocks affects the amount of dirt that washes away when water flows downhill. What is the tested variable? a) size of rocks b) types of dirt c) slope of the hill d) the amount of the water 9) Three baseball players investigate to see who can throw a baseball the farthest. They mark off an area on the playground for their investigation. Which should they keep constant? a) Spot from which players throw b) Height of players c) Order in line d) Color of baseball 10) Students observed the pictured set-up for their investigation. Which question would the students most likely try to test with this set-up? a) Does the height of the ramp affect the distance the car will roll? b) Does the color of the cars affect how fast the cars roll down the ramp? c) Does the mass of the cars affect how fast the cars roll down the ramp? d) Does the surface affect how fast the cars roll down the ramp?
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Recognizing parts of Experimental Design
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Nsbracy
4th Grade
5th Grade
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