Identify Unknown Metals by Density
Written by Adi Ackerman, Head Teacher
"Identify Unknown Metals by Density" is written for 7th Grade (Ages 12-13). A 6th grader who is already steady on matter can use it too, and an older student can use it as a short review.
2 pages in this set
7th grade science worksheet: find volume by water displacement for three samples, calculate density and name each metal or no match. Answer key included. Part of our density matter collection.
How do I use this worksheet?
Use the metals sheet to teach displacement, then the sugar sheet to graph and interpret. Students need a calculator for rounding to two decimal places.
What students will practice
- Students will find volume from the rise in water level in a graduated cylinder.
- Students will calculate density as mass divided by volume.
- Students will name each metal from a table or write no match.
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FAQ
How do I use this density worksheet?
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Use the metals sheet to teach displacement, then the sugar sheet to graph and interpret. Students need a calculator for rounding to two decimal places.
What does this worksheet teach?
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Find volume by water displacement for three samples, calculate density and name each metal or no match. The directions on the page read: Read the text and study the diagram. Page 2 uses the readings for Samples A, B and C. An answer key is included.
Can I use this density worksheet for homeschool or classroom?
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Yes, both. We made it for 7th grade matter, and it works the same at home or at school. At home, a student can work through it alone and then go over it with you, which shows quickly what is solid and what needs another look. In class it works as independent practice, homework or a warm-up, and you can print one copy or a full set.
How do you find the density of an object?
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Density is mass divided by volume. Students find volume from the rise in water level, then divide mass by that volume.
What is water displacement?
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Water displacement is a way to measure the volume of an object with no straight sides. Students read the water level, lower the sample in, read it again and subtract.
Why does one drink can sink while another floats?
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An object sinks if its overall density is greater than the water around it. The sheet has students calculate the density of a sugar can and a zero-sugar can to see why.
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