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melting point
Science; Basic science
The temperature at which a solid becomes a liquid. The melting point of a solid from of a substance is the same as the freezing point of its liquid form.
nuclear
Science; Basic science
Relating to the nucleus of a cell. Relating to the nucleus of an atom. Using energy that comes from the nuclei of atoms.
observation
Science; Basic science
The act of watching something closely and recording how it behaves or changes under certain conditions.
mixture
Science; Basic science
A combination of two substances in which the atoms or molecules of the two substances are spread around in a single mass.
Morse
Science; Basic science
American inventor who developed the telegraph in 1854 and developed Morse code for sending messages by it.
Morse code
Science; Basic science
A system for sending messages in which the letters and numbers are represented by combinations of short and long sounds of light.
permeable
Science; Basic science
Allowing the passage of ions or molecules. Cell membranes are usually permeable to water molecules.
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