Grade 7 Science Revision - Cycle Test 3 PDF

Grade 7 – Science revision – Cycle test 3 Please complete this revision sheet in class so that you are well prepared for your test on Thursday. This sheet is to be completed individually. You are allowed to use your headphones if you need to complete any of your century...

Grade 7 – Science revision – Cycle test 3 Please complete this revision sheet in class so that you are well prepared for your test on Thursday. This sheet is to be completed individually. You are allowed to use your headphones if you need to complete any of your century AI homework at the end of this revision activity: (1) Read chapter 3.1., - Compare and contrast weight and mass - Describe what a contact force is - Draw the triangle for calculating weight and mass - Complete question 9 page 80 - Read the practical on page 82 and look at the graph in your exercise books that we completed. Double check that you know what is expected of you for drawing graphs. (pencil, title, units, scale). Name the piece of equipment below: - (2) Read chapter 3.2., - Describe how the planets move? - Describe how planets orbit the sun in the same plane - What is Gravity?? (3) Read chapter 3.3 (Movement in space) - Write out the multiple-choice questions as statements – the answers are 1 (A), 2(B), 3(D) Eg An object that has causes a strong force of gravity must have a strong mass - Describe the shape of the orbits of the planets - Describe what air resistance is  (4) Read chapter 3.4 (tides) - Describe what a tide is - What are the two objects that cause the force of gravity for tides on earth? - Tidal forces on earth are due to the ____________________________ forces - How long does it take for the earth to spin on its axis? (5) Read chapter 3.5 (Energy) - Describe what energy is Write the definitions of energy types below Kinetic (mechanical) Chemical Thermal Elastic potential Gravitational potential Electrical Sound Light (6) Read chapter 3.6 (changes in energy) - Look back through the practice examples of energy transformations that we completed in class and take some time to revise how to do energy transformations. Pick three examples from your exercise books and write them down (1) (2) (3) Imagine you are heating a beaker of water on a Bunsen burner. Draw a diagram of this showing how some of the thermal energy does not become transferred to the water. Show another two areas on your diagram where the energy can go:  (7) Read chapter 3.7 (Where does energy go?) - Define the key term “dissipated “ - What is the difference between useful or wasted energy? (8) Read chapter 4.1 (Grouping and identifying organisms) - Write down the definition for Mrs. Gren - What does respiration mean? - What does photosynthesis mean? Is photosynthesis part of Mrs. Gren? -Is a virus living or non-living?? Describe why it it not living. Give some evidence (9) Read chapter 4.2 (Viruses) - What is a virus? - Is a virus living or non-living?? Describe why it is not living. Give some evidence (10) Read chapter 4.3 (Species) - What is a species? write at least three sentences describing what a species is. Give an example:  (11) Read chapter 4.4 (Using keys) - Work through this chapter and practice working on the practice keys in your textbook and in your blue exercise book - What does the word dichotomous mean?? Congratulations – you have now completed your study notes for these chapters. Remember you can always complete the practice questions at the end of each chapter as well.