Science

• Chemical changes can involve the release or absorption of energy.
• Enzymes are biological catalysts found inside cells, such as amylase (digests starch) and lipase (digests fats).
• A catalyst is a substance that speeds up a reaction without being used up itself.
• The reactants are transformed into new substances called products during chemical reactions.
• Eukaryotes have membrane-bound organelles while prokaryotes do not.
• Cells can be classified based on their shape (eukaryotic or prokaryotic) and function (animal, plant, fungi).
• Scientific knowledge is falsifiable, meaning scientific hypotheses and theories can be disproven through experimentation and evidence.
• The scientific method follows an iterative approach where conclusions feed back and inform new observations and hypotheses.
• The scientific method involves making observations, formulating hypotheses and predictions, testing them through experimentation, and then drawing evidence-based conclusions.