Mr. MacLean's FirstClass Website

Science & Technology for Classes: F7A, F7B, G78, 81, 82, F8

This website will be used to communicate reminders for homework and upcoming tests, assignments, and projects.


Grade 7: The current Unit of study is called Heat in the Environment.

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Chapter 10.0   Heat causes changes in solids, liquids, and gases.
Key Concepts
Chapter Summary
•     Energy can be transformed and transferred.
•     Heat is the thermal energy transferred from an area of higher temperature to an area of lower temperature.
•     Heat affects the volume of solids, liquids, and gases.
•     Heat is transferred in three ways: conduction, convection, and radiation.
•     There are different forms of energy. Energy can be changed from one form to another.
•     Thermal energy is the total energy of all the particles in a sample of matter. Temperature is a measurement of the average energy of all the particles.
•     Heating results in the expansion of solids, liquids, and gases. Cooling results in the contraction of solids, liquids, and gases.
•     Heat is obtained by burning fossil fuels, from uranium, and from renewable heat sources. Heat is produced in all energy transformations.
•     Cooking food and heating buildings are examples of human activities that transfer heat through conduction, convection, and radiation.

Grade 7 Chapter 10 Test

Class
Ch. 7 Test Date
F7A
Mon. May 7
F7B
Mon. May 7
G7
Mon. May 7

Test Format: The 30 mark test will be completed during one class period, with individual accommodations for time or environment made on an as-needed basis. The test will consist of about 10 multiple choice questions, about 10 matching questions, and 3 short-answer responses of 3 marks each (using diagrams to help support their responses). All parts of the test will require students to be familiar with the vocabulary gained in this section about Heat.


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VOCAB WORDS:

Chapter 10.0
□     change of state
□     chemical energy
□     condensation
□     conduction
□     convection
□     convection current
□     deposition
□     elastic energy
□     electrical energy
□      energy
□     energy transformation
□     evaporation
□     fluids
□     fossil fuels
□     freezing
□     gravitational energy
□     heat
□     infrared waves
□     light energy
□     magnetic energy
□     mechanical energy
□     melting
□     non-renewable energy sources
□     nuclear energy
□     particle theory of matter
□      thermometer  □
        radiation
□     renewable energy
□     sound energy  
□     states of matter
□     sublimation
□     temperature
□     thermal energy

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Grade 8: The current Unit of study is called CELLS, which is all about the Characteristics of Living Things. In this unit, students will learn how to properly use a compound light microscope to view and sketch cells. They will also learn how to prepare a specimen/slide for viewing. We will look at how Cells are the building blocks for living things. Cells-->Tissues-->Organs-->Organ Systems-->Organisms.


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Cells Chapter 1 Test Outline (May 2012)

Chapter 1.0  Cells are the basic units of all living things.
Key Concepts
Chapter Summary
•     Cell theory
•     Differences between plant and animal cells
•     Diffusion and osmosis
•     The study of cells was not possible until the microscope was developed and improved. (1.1)
•     Cells in all organisms come from existing cells. (1.1)
•     Many organelles in plant and animal cells perform similar functions. (1.2)
•     Plant cells have chloroplasts that contain chlorophyll, a substance involved in photosynthesis. (1.2)
•     Materials flow in and out of cells through the processes of diffusion and osmosis. (1.3)
TEST DATES:

G8
Tues. May 22/12
81
Tues. May 22/12
82
Tues. May 22/12
F8
Tues. May 22/12

TOPICS COVERED:
1) MRGREEN – 7 characteristics of Living Things
2) Microscope Parts and Functions of each
3) Care and Use of Microscopes
4) Organelles of Plant & Animal Cells (label diagrams & be able to identify and explain the functions of each)
5) The Cell Theory (3 statements)
6) Permeability, Cellular Transport, Diffusion, Osmosis
Scientific Sketching using microscopes will be assessed in a practical setting separate from this written test (preparing a specimen/slide for viewing, proper setup and care of microscope, focus and accurately sketch what is observed)
Chapter 1.0 Key Terms/Vocabulary
□     cell
□     cell membrane
□     cell wall
□     cellular transport
□     chloroplasts
□     compound light microscope
□     cytoplasm
□     diffusion
□     endoplasmic reticulum
□     eyepiece
□     impermeable
□     membrane
□     mitochondria
□     nucleus
□     organelles
□     osmosis
□     permeable
□     photosynthesis
□     selective permeability
□     stage
□     vacuoles

Practice Questions:
A) Define the word "permeable" in your own words.

B) List three examples of a selectively permeable material or item. Explain where it is found and why a selectively permeable material is needed.

C) If you wrap fresh celery in foil, it will stay crunchy when you store ii in the refrigerator. Explain why you think this happens.

D) Identify all the organelles of Plant and Animal Cells we studied in class, and locate them on a diagram.

E) Compare and contrast the processes of Osmosis and Diffusion. Give an example of each.

F) What would happen if cell membranes suddenly became permeable instead of selectively permeable? Could cells remain alive? Explain your thinking.

G) Describe the steps involved in making a wet mount slide of a specimen, focussing the lens, and making a drawing of the specimen.