| Question |
Answer |
| balance |
An instrument for measuring mass. |
| kilogram |
The mass of a liter of water; 1000 grams. |
| liter |
The volume of a cubic decimeter. |
| mass |
The quantity of matter in an object. |
| matter |
Anything that has mass and volume. |
| meter |
The basic unit of length of the metric system; 39.37 inches. |
| metric system |
A decimal system of measurements based on the meter; SI |
| SI |
The abbreviation for the expanded metric system called Systeme International. |
| units |
Descriptive notes that accompany numbers. |
| unit analysis |
A mathematical tool for converting units. |
| density |
The mass in a unit of volume. |
| law of mass conservation |
In all chemical and physical changes, matter is neither created nor destroyed. |
| meniscus |
Curve seen at a liquid's surface, especially in a graduated cylinder. |
| newtons |
The metric unit of weight (N). |
| second |
The basic unit of time; 9,192,631,770 vibrations of cesium atom. (s) |
| significant digits |
All of the certain digits plus one doubtful digit in a measurement. |
| spring scales |
An instrument for measuring weight. |
| volume |
Any space defined by length, width, and height. |
| water displacement method |
Measuring the volume of an irregularly shaped object by submerging it in water contained in a graduated cylinder and taking before-and-after measurements. |
| weight |
The measure of the force of gravity on an object. |
| scientific notation |
Using the power of 10 to express very large or very small numbers. |
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