Scenario 3: Your teacher's pet dog brought in two unknown substances. One had a regular shape and one
had an irregular shape. Your teacher wanted to identify
the substances so they measure the mass and calculated
the volume.
What property of matter is the scientist using?
Can this property be used to identify a substance?

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the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

the answer is: metamorphic rocks often show the presence of fossils, also a

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imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.