Sc 7 Final Exam review

Science 7 Final Exam review

Describe the cycle of nutrients.

Describe the food chain.  Why does the food chain always need to start with a producer.

 What is agar?

Who was Anton van Leeuwenhoek and what did his invention mean for the advancement of science and the understanding of the world around us?

Name the five types of microorganisms.

Are all microorganisms the same size?  Explain by giving a specific example.

What is a microbiologist?

What type of microorganism can be single celled or multi-cellular?

Which type microorganism is so small that it cannot be seen by a regular microscope?

Describe Alexander Fleming's discovery of penicillin.

Describe the ideal conditions for the rapid multiplication of microorganisms.  Give one example where this is beneficial (good) and one example of when it might be detrimental (bad).

Define producer, consumer, and decomposer.

What are toxins?

Name the three common types of food poisoning.

Describe how botulism/salmonellosis/staph is caused.

Which type of food poisoning is the most common?  How might it be prevented?

What is meant by the term fermentation?

Why does rubbing salt into cod fish help to preserve it?

Why does food kept in the cold take longer to spoil?

Describe how a plant can react to stimulus in its environment.

Are vital signs voluntary or involuntary movements?

What is locomotion?

Describe how snakes achieve locomotion.

What is the difference between a vertebrate and an invertebrate?

Describe how human beings achieve locomotion.

Some organisms do not have lungs.  Name one and describe how it takes in and expels gases (oxygen, carbon dioxide, etc.).

What is meant by the term extinct?  Give one example of a mammal that is extinct.

Name a structural adaptation that animals use for protection.

Name two different methods of reproduction in organisms.

What is meant by the term variation?  Give an example in humans.

What is regeneration?  Give an example.

Give an example of a manufactured structure and a natural structure that serve the same function.

What is design?

Name two structures used by early humans and describe their functions.

Name two structures (one manufactured, one natural) that serve the function of shelter.

What does the term properties mean?  Give an example.

Use the following words in a sentence: load, stress, compression.

What is an alloy?  Why is using alloys often a wise design decision?

What is a beam?

How might you alter a design to make a beam stronger?

What is a cantilever?

Where is the tension/compression when a load is placed on a cantilever?

What is a brace?

Give an example of triangles being used in design.

What is the benefit of using a geodesic dome?

Why is corrugated cardboard stronger than regular cardboard?

Describe the process of stress being distributed in an arch.

List 2 mobile joints and 2 rigid joints.

Science 7 review questions - Unit 2, Topics 5-7

These are the review questions from our game show activity.  Just as a reminder, your quizzes will be written as follows:

7P = Wednesday, May 6th (Period 2)

7C = Thursday, May 7th (Period 4)

Happy studying!

*******

What is the word that describes supporting pieces of wood or other materials around the base of a structure that form a triangle with the ground?

Describe why using triangles in design is often better than using squares.

Give two examples of braces in design (braces on teeth don't count).

What is meant by the term “corrugated”?

Why is corrugated cardboard stronger than regular cardboard? 

Define the term “column” and give an example of a column being used in design. 

There are many problems associated with using columns to build structures.  Name one.

What is the term given to the last stone placed in an arch?

Why didn’t early arches require mortar to be held together?

List 3 examples of rigid joints. 

List 3 examples of mobile joints.

Half an eggshell is what shape? 

Why are domes strong shapes to use in design?

What is the name given to a dome that is built up of a framework of triangles?

Sc 7P Reading homework

Please read p. 116-121 for next class. Thanks!

Science 7 exam review

The exam for both Science 7C and 7P will be on Wednesday, April 8th.  The exam is on Unit 2: Structures and Designs, Topics 1-4.

Pages in the textbook to re-read: p. 74-109

Study questions to complete: Checkpoint p. 110 #1-5

In addition to the Checkpoint questions, here are some terms and concepts to help you to study before the exam:

Key terms:

- structure

- design

- natural

- manufactured

- function

- technology

- materials

- properties

- stress

- load

- compression

- tension

- compressive strength

- tensile strength

- metal fatigue

- alloys

- beam

- cantilever

- orientation

- neutral axis

Additional study questions:

1.  List 10 examples each of manufactured and natural objects.

2.  Name three structures that serve the same function (list, and name the function).

3.  Describe how early human beings used simple structures to carry out basic functions.  How many can you brainstorm?  List them.

4.  Manufactured and natural objects often share similar designs.  What manufactured object has a design that may have been inspired by the spider web?  List as many other examples of manufactured and natural objects that share similar designs (i.e. kangaroo pouch/bunnyhug, mushroom/umbrella, bird/hang glider, etc.).

5.  Name two manufactured structures and two natural structures that are used for the function of digging.

6.  Describe why a train bridge made of plastic would not be a wise design decision.  Try to use the words materials, properties, stress, load, and compression/compressive strength in your answer.

7.  What must designers take into account when choosing the right materials to use for a structure?

8.  What will happen to a beam that is supported on both ends when it is put under stress?  Where is the tension?  Where is the compression?

9.  What will happen when a load is placed on a cantilever?  Where is the tension?  Where is the compression?

10.  Why are alloys often good material choices for structures?  What do they offer that single metals do not?

11.  How can a beam be strengthened so as to avoid bending or breaking under a load?  Draw a sketch of a strengthened beam.

12.  When a beam is placed on its narrow edge, what happens to the amount of load it can support?  Why?

13.  Explain why the amount of material along the neutral axis of a beam can be reduced without weakening the beam.  Why is reducing the material along the neutral axis beneficial to the structure?

Leave me a comment here if you have any questions or comments.  Happy studying! :o)

Science 7 - Cantilever bridge videos

Hi Sc 7C and 7P!  Here are some videos I found on YouTube to help illustrate the concept of the cantilever bridge:

Video #1 - a model of a cantilever bridge in motion:

Video #2 - People breaking a cantilever (remember that it is easier to support a load on a cantilever closer to its attached end, a concept that we discovered when Megan and Nicole supported the weight of a backpack on one arm, first close to the shoulder and then closer to the wrist):

Sc 7P Homework Check

Hi Science 7P! The definitions of metal fatigue and alloy are due for tomorrow's class. Don't forget! :o)

Sc 7P exam date - Topic One

Hi 7P! Just a reminder that your Topic One exam will be this Friday, February 6th. Please refer to the study tips posted on this blog before your last exam (linked here) to help you to prepare. The exam will include material from the beginning of the year as well as material from the last topic (hibernation, migration, behavioural adaptations, receptors, etc.).

Science 7 updates

Hi girls. This is just a reminder that if you have been missing any days this week, you need to catch up on notes from another student. We have been taking a lot of notes and I don't want you to be missing anything when it comes time to study for the next exam!

Also, if you have any assignments outstanding (lab report, average calculations, Activity 1-16 on the digger wasp, etc.), please submit them to me asap. You will receive a grade of zero for anything not handed in or presented during homework checks.

Thanks!

Science 7P HW check - Act 1-16

Hi Science 7P!  I hope you're enjoying your very long weekend.

Your next HW check (due next class) will be Activity 1-16 (Questions #1-6) on pg. 54 of your textbook.  Leave a comment here if you have any questions.

Enjoy sleeping in! :o)

Sc 7P lab reports due

Hi 7P!  This is just a reminder that your lab reports are due on Friday.  Please make sure to have your report printed out BEFORE class, as we don't have the computer lab booked and we haven't set aside time to work on the reports then.

Thanks!

Sc 7P lab HW check next class

I will be doing a HW check for all Science 7P students next class.  At that time you should have completed the averages for all categories of reflex-testing activities (sight, touch, sound, and sight/touch).  Remember:

sum of drops (in cm)

_______________     =  average reaction time (in cm)

          # of trials

For example, if my results were 10cm, 22cm, 12cm, 13cm, and 7cm, then:

10 + 22 + 12 + 13 + 7 = 64

64 / 5 (number of times I dropped the metre stick) = 12.8

Therefore, my average is 12.8cm.  (Please complete this process for each category.)

Sc 7P spelling quiz

Hi 7P!  Don't forget that your spelling quiz in science is tomorrow.  I know you can't wait to dazzle me with your spelling and grammar know-how! :o)

HW Check - Sc 7 Grammar/Spelling/Content Review

Hi Science 7C and 7P! The Grammar/Spelling/Content review activity questions (#1-19) are due for next class. Many of you had the opportunity to finish in class, but if you were absent or did not finish during class time, please take the time to complete the activity as homework. Remember to circle, underline, cross out, etc. any errors and replace them with the necessary corrections. Thanks!

Sc 7P quiz date change (again)

Hi 7P!  A singing practice for Friday's mass has been called for tomorrow in p. 6, which conflicts with our Science class.  Also, it looks like the mass itself may conflict with the next class as well, so we will talk to discuss another date for the quiz if we are unable to write it on Friday.  Be prepared just in case.

Please comment once you've read this.  Thanks!

Science 7P HW check reminder

Just a reminder that the Checkpoint questions on p. 45 (#1-7) are due for tomorrow.

I hope everybody has had a good weekend!

Science 7 Quiz Review

Hi gr. 7! Here are some review questions for you to complete as you study for the quiz. Just a reminder: 7C will write the quiz on Wednesday (19th) and 7P will write the quiz on Thursday (20th).

Science 7 Quiz Review

1. Provide full and complete definitions of the following terms, and give examples where appropriate:

a) organism
b) environment
c) structural adaptations
d) photosynthesis
e) digestion
f) lungs
g) extinct
h) locomotion
i) pulse
j) stomata
k) gills
l) spiracles

2. Describe the structural adaptations of the following insects and explain how the adaptations of their mouthparts allow them to obtain food:

a) Grasshopper
b) Housefly
c) Mosquito
d) Butterfly

3. Which of the following are parts of the human digestive system? Circle all that apply.

a) Mouth
b) Stomach
c) Small intestine
d) Anus
e) Pharynx
f) Kidney
g) Salivary glands
h) Pituitary gland
i) Large intestine
j) Rectum
k) Lungs
l) Liver

4. Describe the process of digestion in an earthworm.

5. Describe how the following organisms get gases in and out of their body:

a) Humans
b) Plants
c) Fish
d) Grasshoppers
e) Earthworms

6. True or False:

____ Grasshoppers use lungs to breathe
____ Blinking is an example of locomotion
____ Each body segment of an earthworm has three (3) layers of muscle
____ Vital signs are examples of movements that are easily controlled and observed
____ Plant movements are usually quick and easily visible to the naked eye

7. Compare and contrast the skeletons of a human and an insect. What are their similarities? How are they different?

8. Describe in detail how snakes achieve locomotion. Is the snake’s method of movement an efficient means of locomotion for humans? Why or why not?

9. List three (3) similarities between the movement of a fish and a human swimmer.

10. Which is the following is not an example of a vital sign?

a) Pulse rate
b) Cholesterol level
c) Breathing rate
d) Blood pressure

11. Give two (2) examples of plants showing movement.

12. Which living things do you think influenced the inventors of these devices?

a) Rubber flippers for skin-divers
b) Kite
c) Helicopter

13. List the structural adaptations of five (5) mammals that you remember from the student in-class presentations and describe how each adaptation helps the organism to survive in its environment.

14. What is unique about the way in which walking ferns show movement?

15. Do you feel more prepared for this quiz now after answering these questions?

a) Yes
b) No
c) Maybe
d) I don't know
e) Can you repeat the question?

:o)

Science 7P HW check - Checkpoint p. 45

Science 7P HW check - Monday, Nov. 17th

Checkpoint p. 45 - #1-7

Students who were missing yesterday will need to catch up questions #1-4 as well.  If you have questions, leave me a comment or see me at school.  Please make an attempt to answer all questions thoroughly.

Study tips for 7C and 7P:

- Re-read pages 27-45

- Write definitions of key words in your notes (key words are often bolded in the text)

- Provide examples of key concepts (i.e. concept: structural adaptations; example: a giraffe has a long neck to help it to reach leaves high in trees for food)

- Have a friend or parent test you by asking you questions from the material contained in your textbook or study notes

- Review material from your peers' presentations - if you can't remember, ask them!

- Re-read your study notes, summarize the text..... review, review, review!

- Remember the activities we did outside (slithering, locomotion, pulse rate, etc.) and what we learned by doing these activities (how does a snake use its muscles to move?  What effect does exercise have on your pulse rate?, etc.)

- Be thorough in your studying.  Make sure you have full and complete answers, definitions, etc. (one or two-word answers will not earn you full marks on an exam, so please don't study this way)

- Set a time to study, and reward yourself for a job well done.  Take occasional breaks for snacks, exercise, or other activities to keep your mind fresh before returning to your task.

- Try to anticipate what types of questions might be asked on the exam, and create practice exam questions for yourself to answer.

:o)

Science 7P Quiz date change and HW check

The Science 7P Quiz on Topics 3 & 4 (Built for Survival and A Close Look at Movement) will now be on Thursday, November 20th - Day 5. Please note the date change!!!!

HW check tomorrow (Day 6) - Checkpoint, p. 45, Questions #1-4.

If you have any questions, leave me a comment or talk to me at school. Happy studying!