L. 3: How Do Scientists Use Tools
Presentation
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Science
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3rd Grade
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Medium
Standards-aligned
Shevonne Flores
Used 11+ times
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11 Slides • 10 Questions
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L. 3: How Do Scientists Use Tools
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Make It Clear!
Scientists use magnifying tools to help them see small objects.
Magnifying tools make things look larger.
Magnifying tools include: microscopes, hand lenses, and magnifying boxes.
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Hand Lens
To use a hand lens, hold the lens near your eye.
Then, move the hand lens closer to the object until the object is sharp and in focus.
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Magnifying Box
A magnifying box has a lens in its lid.
You can use it to study things that are hard to hold, such as bugs.
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Microscopes
A microscope magnifies objects that are too tiny to be seen with the eye alone.
Most microscopes have a light source and two lenses that work together.
You can use microscopes to study very tiny objects.
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Mass
A balance measures mass.
Mass is the amount of matter in an object.
The basic unit of mass is the gram.
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Length
Measuring tapes and rulers measure length.
The basic units of length are centimeters, meters, inches, and feet.
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Volume
Volume is the amount of space a solid, liquid, or gas, takes up.
You can use a graduated cylinder, measuring cup, or spoon to measure the volume.
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Time
Clocks and stopwatches are tools that measure time.
The basic unit of time is the second.
1 minute = 60 seconds
1 hour = 60 minutes
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This device is used to measure ...
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This is used for ...............
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L. 3: How Do Scientists Use Tools
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