Grade 9 Science Exam Review - Solutions 2014 | Page 3

10.Complete the following table on gases: Gas Test Glowing splint flaming splint limewater flaming splint Oxygen Carbon Dioxide Carbon Dioxide Hydrogen Result Bursts into flames Flame goes out Limewater turns cloudy ‘pop’ 11.The five points of the particle theory are: i) All matter is made up of tiny particles ii) Each pure substance has its own kind of particle, which is different from the particles of other pure substances iii) Particles attract each other iv) Particles are always moving v) Particles at a higher temperature move faster on average, than particles at a lower temperature 11. a) Complete the following concept map on classification of matter: Matter Pure substance compound Mixture element Homogeneous Heterogeneous b) Complete the following table based on the concept map above: Substance Pure or Mixture If pure: element If mixture: homoor compound Sand & water Bluestone (CuSO4) Starch in water Mixture Pure Mixture or hetero-geneous Heterogeneous Compound Homogeneous Page 3 of 17