Science 10 Name: ______
Weekly #1: Biology and others
Due Date: Friday May 27
1. Differentiate between the following terms (5 marks)
a. Mitochondria and chloroplasts
b. Magnification and field of view
c. Organelle and Organ
d. Cell wall and cell membrane
e. Staining and wet mount
2. Identify the parts of the microscope. (5 marks)
a. By what two parts should a microscope always be carried?
b. What structure controls the amount of light passing through the stage of the microscope?
c. What two structures of the microscope would be used to determine magnification?
d. What structure holds the specimen to be viewed through a microscope?
e. What is the name of the structure that allows the magnification to be changed?
3. If the low power objective magnifies 4X and has a field of view of 5000um, what will the field of view of a medium power objective that magnifies by 8X? (1 mark)
4. Suppose the diameter of field of view under 80X magnification is 8000 um and you estimate that 2.0 of these critters fit across the field of view. How large is the critter? (2 marks)
5. Imagine you are intergalactic space traveller and you think you have discovered a new organism on another planet. What observations would help you conclude whether this thing was composed of cells or not. (3 marks)
6. Fill in all the missing information about magnification and field of view for the microscope listed below. One mark for each space
Ocular Lens / Objective Lens / Magnification / Field of view μm10 x / 4 x / 4500
10 x / 10 x
10 x / 20 x
7. Solve for the missing information in each situation below. Show work to support your answers. (4 marks)
8. A moving car has 1.45 MJ of kinetic energy. If the car has a mass of 2000 kg, how fast is the car moving? Is this car speeding? If so, how far above the posted limit of 110 is this car going? (4 marks)
9. If dime is dropped from a bridge that is 200 m high and the dime has a potential energy of 40.0 J before it is dropped, what is the mass of the dime in grams? (2 marks)
10. If the Em of a 25 kg object is 3.20 x 106 J when it is falling at a rate of 12.5 m/s, how far above the ground is the object? Give the answer in metres. (3 marks)
11. Chemistry Section
Name Formula
i. Rubidium sulfate ______
ii. Gold (I) carbonate ______
iii. copper (I) silicate dihydrate ______
iv. Ammonium fluoride ______
v. Sulphur dioxide ______
vi. ______MgO
vii. ______NH4OH
viii. ______C12H22O11
ix. ______Ni2O3 .4H2O
x. ______CO
12. Determine the following using the correct amount of significant digits.
a. Find moles for 589 g of lithium phosphate
b. Find mass of 0.75 moles of tin (II) acetate
c. Find moles for 3.67 x 1024 particles of Al3+(aq)
d. Find the number of atoms in 8.2 moles of P4(s)
13. Predict the products. Then write and balance a reaction for (2 marks each)
a. Solution of zinc sulphate and solution of calcium nitrate
b. Decomposition of mercury (II) phosphate into its elements
c. Combustion of propane
d. Single replacement between calcium metal and solution of aluminium nitrate.