A scale.
Things in America. Almost everywhere else they weigh 3.1751 Kg.
Scale
A white Rhino
A blue whale has a mass of over 100 tons.
A general answer to your question would be: tools. For example, a microscope is a tool that makes it easier to understand things that are too small to observe directly. An x-ray machine is a tool that allows us to see inside of things that are too hard to see inside of directly. A knife is a tool that allows us to cut up large things to see what is inside of them.
a tool to weigh objects (n)
Scales :)
I think no because the blocks would be too heavy to weigh.
Things in America. Almost everywhere else they weigh 3.1751 Kg.
The tool that you use to weigh yourself.
A tool is something that helps you build or unbuild things.
things that weigh 450 pounds
Scale
No, a food scale is not the best tool to weigh concrete blocks because concrete blocks are significantly heavier and larger than food items, and may exceed the weight capacity of a food scale. A heavy-duty industrial scale or a construction scale would be more appropriate for weighing concrete blocks.
A tool for pulling things out is a pry bar or a claw hammer.
No, there is presently not an app for the ipod touch to weigh things on its screen.
they would weigh the same everywhere