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How do scientists investigate questions?
How do scientists use tools?
How do scientists use data?
How can you use a model?
How do your results compare?
100
What do you do when you observe?
You use your senses to notice details
100
Which tool would you use to measure the volume of a liquid
A graduated cylinder
100
Ms. Pare wants to put a fence around her house. She has 2 meters. Will that be enough to put a fence around her house? Yes or no?
No, she needs 200 meters not just 2
100
How do scientists use models?
Models help us understand things that are too big or too small to observe
100
It is very important to test only one ______________, or thing that changes, at a time.
Variable
200
What is an experiment?
A test done to gather evidence
200
Which tool magnifies objects that are too tiny to be seen with the eye alone?
A microscope
200
Two scientists do the same experiment and get different results. What is the best way to find out whose results are correct?
Have other scientists try the same experiment
200
Kylie uses two balls of different sizes to represent the Earth and the moon. What is Kylie doing?
She is making a model
200
Gaurav does an experiment where he measures the height of different plants. How should he display his results?
Draw a bar graph or create a data table
300
What is an inference?
A reasonable or possible hypothesis
300
Sophia has an apple, a walnut, and a strawberry. She needs to measure the mass of each one. Which tool should she use?
A pan balance or scale.
300
How is a data table different from a chart
A data table is used to record numbers
300
You want to study factors that affect the rate of evaporation. To do this, you use an electric fan, a heat lamp, one shallow pan of water, and one deep pan of water. Which object in your model represents the sun?
The heat lamp
300
Why is it important to do the same measurement more than once and compare your data with other students' data?
Because repeating measurements helps ensure that a measurement is done correctly and that comparing data lets you check your work
400
What is a hypothesis?
A statement that could answer your testable question. An educated guess about your question.
400
Aiden and Jolie will measure the time it takes for three mice to run through a maze. What tool should they use to measure the time of each mouse's run?
a stopwatch
400
Gabriella and Chadwick want to find out just the height of the bubble layer in their jars. Gabriella measures the height of the bubble layer from the bottom of the bubbles to the top of the bubbles. Chadwick measures from the bottom of the water to the top of the bubble layer. Who's measurement is going to be larger than it should be? Why?
Chadwick's because he measures from the bottom of the water to the top of the bubble layer.
400
Jacob and Antonio are playing on the beach. They see a large ship on the ocean. They want to know how a ship that large can float. Why is studying a model of the ship the best way to find out?
They can't build and test a full-size ship
400
Joshua does an experiment where he puts water in a jar, adds drops of soap in the jar, and shakes the jar. What conclusion can Joshua make about the experiment? Why do bubbles form?
Bubbles form because he shakes the water with soap in it
500
"I can see the wind blowing this sail." What can you infer about this observation?
The wind is making the boat move
500
Ally wants to see a tiny part of a leaf up close. What tool should she use?
A microscope
500
Ms. Pare asks each student to estimate how tall he or she is. Jessica estimates that her height is 85. What is wrong with Jessica's estimation? What is she missing?
Jessica's answer is incomplete because she is missing a unit label.
500
How is a model airplane different from a real airplane?
The model airplane doesn't have an engine to keep it moving. It also doesn't have a way to steer the plane. The model is also a lot smaller than real airplanes
500
Three groups of students measure the distance around a table. Group 1 measured 80 cm, Group 2 measured 798 cm, Group 3 measured 799 cm. Which group should measure again? Why?
Group 1 should measure the table again because their data is very different