MARINE SCIENCE. Monday 9 Apr 2018

Transcription

1 MARINE SCIENCE Monday 9 Apr 2018

2 Entry Task Grab your ISN from the front counter.

3 Agenda Housekeeping Variables Graphing Techniques

4 Housekeeping No more breaks for the remainder of the month.

5 Variables Variables. A quantity or condition that can change. Can be continuous or they can be discrete: Continuous variables can have many values. - E.g. time can have many values, plant growth, amount of sunlight etc. Discrete variables are ones that have a few, distinct values. - Something can be either on or off, present or absent, or a person may have blue, brown, green or hazel eyes. Adapted from Sciencing link

6 Variables There are 2 main types of variables: Independent/Manipulated Variable (IV) - The variable that is changed by the scientist; the I control variable. - A good experiment has only one IV Dependent/Responding Variable (DV) - The variable that might change because of what the scientist changes; what is being measured. - The value of the DV is caused by & depends on the value of the IV. Adapted from Carter G. Woodson school link

7 Variables Your hypothesis can TELL you what your variables are! E.g. If I drink Mountain Dew before bed, then I will not sleep very much. - IV: Drinking Mountain Dew - DV: Amount of sleep Adapted from Carter G. Woodson school link

8 Variables Use the hypothesis to identify the variables: If I leave all the lights on all day, then my electric bill will be expensive - IV: - DV: If I brush my cat more, then there will be less fur on my furniture - IV: - DV: Adapted from Carter G. Woodson school link

9 Variables Now read the following experiment and identify the independent and dependent variables. Elizabeth wanted to test if temperature affected how fast milk goes bad & curdles. She left milk in a room temperature closet, a fridge, & a oven that was turned on low heat. She then measured how rotten the milk was after 10 days. - IV: - DV: Adapted from Carter G. Woodson school link

10 Variables Constant: Something that a scientist makes sure is the same throughout the experiment. E.g. Watering plants the same amount of water or taking measurements at the same time each day. Control: The part of the experiment that the scientist doesn t change or add the variable to. E.g. The plant with the white light Adapted from Carter G. Woodson school link

11 Variables Process Oriented Guided Inquiry Learning (POGIL). Experimental Variables Note: The Experimental Variables POGIL can be located on the Marine Science link:

12 MARINE SCIENCE Tuesday 10 Apr 2018

13 Entry Task Which variable that is changed by the scientist & considered the I control variable? Independent/Manipulated Variable (IV) How many does a good experiment have? One

14 Agenda Housekeeping Graphing Techniques

15 Housekeeping No more breaks for the remainder of the month. Guest teacher on Monday, 16 Apr.

16 Unit 3 Summative Hold your questions until all assessments have been returned.

17 Graphing Graphs. Pictorial display of information. Makes it possible to get a quick impression of a great deal of data & easily make comparisons & draw conclusions. Often used by governments, businesses, & education Appear in reports, newspapers, & magazines.

18 Graphing Graphs. Four main types of graphs: - Pictographs - Circle Graphs - Bar Graphs - Line Graphs

19 Graphing Pictograph. Uses pictures or symbols to display information. Usually has a key showing the value of each symbol. Read by counting the symbols on a line of a graph & computing their value.

20 Graphing Circle Graph. Uses parts of a circle to show information. Shows values in each part of a divided circle. A part of a circle is called a segment or section. Segments of a circle add up to a whole or to 100% of the topic.

21 Graphing Bar Graph. Uses thick bars to show information. Drawn in either direction; running up & down (horizontal axis) or left to right (vertical axis). A graph may have a break in the vertical axis meaning that some values have been left off to save space.

22 Graphing Line Graph. Drawn with one or more thin lines that extend across the graph. Drawn using values along a horizontal & vertical axis. Most useful in showing trend & developments.

23 Graphing protocols acronym. Graphing D R Y ependent esponding axis M I X anipulated ndependent axis

24 Graphing protocols acronym. Graphing D T A I L S ata itle xis ncrements abels cale

25 Graphing Graphing Practice Problem worksheet Practice Problems 1 & 2 Note: The Graphing Practice Problems worksheets can be located on the Marine Science link:

26 MARINE SCIENCE Wednesday 11 Apr 2018

27 Entry Task Complete the graphing practice problems 1 & 2. This will be turned in.

28 Agenda Housekeeping Graphing

29 Housekeeping Guest teacher tomorrow, 12 Apr. Unit_14 Vocabulary Question Worksheet Guest teacher on Monday, 16 Apr.

30 Graphing Graphing Practice Problem worksheet Practice Problems 3 & 4 Note: The Graphing Practice Problems worksheets can be located on the Marine Science link:

31 MARINE SCIENCE Thursday 12 Apr 2018

32 Guest Teacher Grab a copy of the Unit_14 Classifying Marine Animals - Vocabulary worksheet from the front counter. Grab a ChromeBook from the cart. Be sure to grab the number that corresponds to the number on your desk. Complete the worksheet using the Classifying Marine Animals Introduction document within google classroom. Note: The Unit_14 Classifying Marine Animals - Vocabulary worksheet can be located on the Marine Science link:

33 Guest Teacher Once you have completed the vocabulary grab a copy of the Unit_14 Classifying Marine Animals Practice 1 worksheet. The ChromeBook will be needed for this assignment as well. Note: The Unit_14 Classifying Marine Animals Practice 1 worksheet can be located on the Marine Science link:

34 MARINE SCIENCE Friday 13 Apr 2018

35 Entry Task What is the term used for organisms that do not have a backbone? Invertebrate What phylum of organisms are crabs, shrimp, & lobsters classified as? Arthropoda

36 Agenda Housekeeping Unit_14 Classifying Marine Animals

37 Housekeeping Guest teacher on Monday, 16 Apr.

38 Classifying Marine Animals Classifying Marine Animals - Primitive to Complex One of the largest classification groups is called a phylum. - Animals belonging to a specific phylum will share similar traits. - Invertebrates are classified into multiple phylums (7). - Phylum = Chordata (vertebrates)

39 Classifying Marine Animals Invertebrates: Well Adapted to Their Habitats Thought of as being more primitive (less complex) than vertebrates. Many have simple body structures, but others have nervous systems & skeletons as intricate as vertebrates. They have a variety of different skeletons each is specially suited to its environment. - Hydrostatic skeleton - Exoskeleton - Endoskeleton

40 - Framework located inside the animal; most complex animals in the world are humans. Classifying Marine Animals Invertebrates: Well Adapted to Their Habitats Hydrostatic skeleton - Bag of muscles; muscles contract, or shorten, pushing against the water inside. Exoskeleton - Hard coating covering internal organs & muscles. Endoskeleton

41 Classifying Marine Animals Phyla of Marine Organisms:

42 Classifying Marine Animals Invertebrates: Well Adapted to Their Habitats Cnadaria Porifera Echinodermata Invertebrates Platyheminthes Mollusca Arthropoda Annelida

43 Classifying Marine Animals Porifera: ( pore Phylum bearer ): of the Phylum of the Ancient & Primitive Most primitive multicelled animals found on Earth (e.g Sponges). Sponges evolved from one-celled animals dependent on each other; living together in colonies for mutual benefit. Today they have different cell types specializing in specific function each type relying on the other for survival. Central Cavity Pore Holdfast Branch Osculum Water Flow Water Flow Bud

44 Classifying Marine Animals Porifera ( pore bearer ): Phylum of the Ancient & Primitive Most of the over 10,000 different kinds live in the ocean. They are found in shallow waters & all are sessile; immobile, attached to permanent objects (i.e. rocks, shells, coral, etc.).

45 Classifying Marine Animals Cnidaria ( stinging celled ): Stingers in the Ocean Most members have tentacles armed with tiny, stinging cells used for gathering food & protection. - Can cause severe stings & even death. Bag-like bodies made of two cell layers. Contain a stomach cavity or gut with only one opening - mouth.

46 Classifying Marine Animals Cnidaria ( stinging celled ): Stingers in the Ocean Plankton = jellies & Portuguese man-of-war Benthic = coral, sea whip, & sea anemone