Science Exam - Key Concepts PDF

**What should I know for the exam:** Can I - Draw the structure of an atom including the location of proton, neutrons, electrons and label the shells and the nucleus - Use the periodic table to identify atomic number, atomic mass element symbol - Do I know the properties of acids a...

**What should I know for the exam:** Can I - Draw the structure of an atom including the location of proton, neutrons, electrons and label the shells and the nucleus - Use the periodic table to identify atomic number, atomic mass element symbol - Do I know the properties of acids and bases do I know what an indicator is **BASE:** Taste bitter feel soapy/slippery OH, hydroxide ions soap **ACID:** taste sour Corrosive on contact Hydrogen ions lemon - Can I identify a word equation the products and reactants - Can I write a word equation for a simple chemical reaction - Can I define conservation of mass -- stuff is not created nor destroyed it is merely rearranged - Do I know what an exothermic and endothermic reaction and why they are that way - Can I identify a combustion reaction from a word equation -- hydrocarbon + oxygen -- carbon dioxide + water Metal + oxygen = metal oxide (mg only metal that burns) - Can I identify the word equations of each of the three acids reactions Acids and carbonate -- acid + carbonate -- water + carbon dioxide + salt Acids and metals -- acid + metal -- hydrogen gas + metal salt Acids and bases -- salt + water neutralisation - Can I write a word equation for photosynthesis and respiration, and do I know how they are linked Water + carbon dioxide + energy = sugar and water - Can I identify the products of reactants and names of the three types of radioactive decay - Can I compare nervous and the endocrine systems - Do I know what the reflex arc is - Do I know what feedback loop is - Do I know these terms: **PNS:** peripheral nervous system **CNS**: central nervous system Homeostasis - Do I know the organs of the excretory/ urinary at respiratory system - Do I know how the nervous system and endocrine system regulate temperature. - Do I understand a half life graph.