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===Meaning===
To '''observe''' is to collect information during an [[experiment]] using our [[Sense|senses]] and [[Measure|measuring tools]] and record that information.
===About Observations===
: '''Observations''' may be informal (not part of an [[experiment]]) and can be used to make a [[hypothesis]] which then leads to an [[experiment]].
: Some '''observations''' are made during an [[experiment]] because the [[Dependent Variable|dependent variable]] cannot be [[measure]]d. This might happen if there is a colour change of an [[indicator]] or a [[precipitate]] is formed. In both cases these are not [[measure]]d but [[observe]]d.
==Key Stage 4==