1 / 29

Second Semester Final Review

Second Semester Final Review. Seventh Grade Science Chicoine, Kaplan, & Lewis. ESSAY. Be able to write an essay like the one you wrote for the cardiovascular system. LINK TO SAMPLE ESSAY. LIGHT DRAWINGS. Draw and explain how light travels through a convex lens.

gizela
Download Presentation

Second Semester Final Review

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Second Semester Final Review Seventh Grade Science Chicoine, Kaplan, & Lewis

  2. ESSAY • Be able to write an essay like the one you wrote for the cardiovascular system. • LINK TO SAMPLE ESSAY

  3. LIGHT DRAWINGS • Draw and explain how light travels through a convex lens. • Light refracts inward at a greater angle through the thinner edges and comes together at a focal point.

  4. LIGHT DRAWINGS • Draw and explain how light travels and hits a smooth surface (regular reflection). • Light will bounce off a smooth surface together at an angle of incidence.

  5. LIGHT DRAWINGS • Draw and explain how light travels and hits a rough surface (diffuse reflection). • Light will scatter in several directions off a rough surface.

  6. Levels of Organization The level of organization in the body from smallest to largest: • Cells • Tissues • Organs • Organ Systems • Organisms

  7. # 1 Cardiovascular Function • 1. PUMPS BLOOD THROUGH BODY • 2. DELIVERS OXYGEN & NUTRIENTS TO CELLS • 3. REMOVE WASTE PRODUCTS FROM CELLS

  8. # 1 Muscular Function • MUSCLE ALLOWS FOR VOLUNTARY AND INVOLUNTARY MOVEMENT IN THE BODY

  9. # 1 Skeletal Function • PROTECTS AND SUPPORTS THE HUMAN BODY • RIBS PROTECT THE HEART AND LUNGS • SKULL PROTECTS THE BRAIN • VERTABRAE PROTECTS THE SPINAL CORD

  10. # 2 Cardiovascular Tissues • BLOOD VESSELS • ARTERIES- CARRY BLOOD AWAY FROM THE HEART • VEINS- CARRY BLOOD TO THE HEART • CAPILLARIES- ONE CELL THICK, DELIVERS & REMOVES MATERIALS FROM CELLS

  11. # 2 Skeletal Tissues • COMPACT BONE - PROVIDES SUPPORT AND STRENGTH • SPONGY BONE - CONTAINS MARROW AND PRODUCES RBC’S (blood) • YELLOW MARROW - STORES FAT • LIGAMENTS - STRONG ELASTIC BANDS THAT CONNECT BONE TO BONE.

  12. # 3 Muscular Tissues • SKELETAL MUSCLE MOVES BONES • SMOOTH MUSCLE LINE THE DIGESTIVE TRACT AND BLOOD VESSELS • CARDIAC MUSCLE IS FOUND IN THE HEART

  13. # 4 The Three Parts of the Heart • ATRIUM - TOP CHAMBER, RECEIVES BLOOD • VENTRICLE – LOWER CHAMBER, PUMPS BLOOD • VALVES- KEEPS BLOOD FLOWING IN ONE DIRECTION, (lub-dub)

  14. # 5 The Three Types of Joints • HINGE JOINTS - ARE FOUND IN THE ELBOW AND KNEE (Open Close) • BALL AND SOCKETS - SHOULDER AND HIP (Circular) • SLIDING JOINTS - WRIST AND ANKLE (Side to Side)

  15. # 6 Eye • CORNEA: OUTER, TRANSPARENT COVERING • RETINA: CONTAINS PHOTORECEPTOR CELLS WHICH DETECT LIGHT • IRIS: MUSCLES WHICH OPEN AND CLOSE THE OPENING OF THE PUPIL. GIVES COLOR TO THE EYE • LENS: CONVEX TRANSPARENT OBJECT REFRACTS LIGHT TO THE RETINA

  16. # 6 Eye • PUPIL: OPENING TO THE EYE; MORE LIGHT – SMALLER OPENING. • RODS: DETECT DIM LIGHT • CONES: DETECT COLORS • OPTIC NERVE: CARRY NERVE IMPULSES FROM PHOTORECEPTORS (rods & cones)

  17. #7 COLOR OF OBJECTS • AN ORANGE APPEARS ORANGE BECAUSE ALL COLORS ARE ABSORBED EXCEPT THE ORANGE THAT IS REFLECTED

  18. #8 & 9 Tendons and Levers • TENDONS ATTACH MUSCLES TO BONES • THE BONES ARE THE PARTS OF THE BODY THAT ACT AS LEVERS. AN EXAMPLE WOULD BE THE ARMS & LEGS (USE FOR LIFTING) • LIGAMENTS ATTACH BONE TO BONE

  19. # 10 Change Over Time • EXTINCTION: THE DYING OUT OF A SPECIES OR ORGANISM. • EVOLUTION: CHANGE OVER TIME IN AN ORGANISM (animal or plant) • MUTATION: A CHANGE IN THE ORDER OF THE DNA BASES

  20. #10 Change Over Time • NATURAL SELECTION: CERTAIN ORGANISMS ARE ABLE TO SURVIVE AND REPRODUCE AT A HIGHER RATE BECAUSE THEY HAVE “FAVORABLE TRAITS” WHICH ALLOW THEM TO ADAPT TO THEIR SURROUNDINGS. • ADAPTATION: INHERITED CHARACTERISTICS THAT HELP AN ORGANISM TO SURVIVE AND REPRODUCE IN ITS ENVIRONMENT

  21. #11 Galapagos Finches • THE STRUCTURE THAT CHANGES THE MOST FROM IT’S ANCESTORS WERE THE BEAKS OF THE BIRDS. FOR EATING DIFFERENT FOODS (CRACKING SEEDS, GRABBING INSECTS, DRAWING NECTAR FROM CACTUS)

  22. # 12 Earth Change Over Time • THE CAUSE OF MAJOR EXTINCTIONS OCCURS WITH CHANGES IN THE CLIMATE AS CONTINENTS MOVE OR LARGE ASTEROIDS HIT EARTH

  23. # 13 Earth Change Over Time • THE OLDEST FOSSILS IN A CANYON OR HILL SIDE WOULD BE LOCATED IN THE BOTTOM LAYERS.

  24. #14 Earth Change Over Time • FOSSIL LAYERS AFFECTED BY EARTHQUAKES CAN CAUSE OLDER FOSSILS TO MOVE ABOVE NEWER FOSSILS

  25. #15 Rock Cycle • IGNEOUS ROCK: MELTING, MAGMA, CRYSTALLIZATION • CHARACTERISTICS: COMPOSED OF TINY CRYSTALS, AN ANGULAR SHAPE OR AIR HOLES.

  26. #15 Rock Cycle • SEDIMENTARY: EROSION, SEDIMENTS. BURIAL • CHARACTERISTICS: FRAGMENTS OF ROCK, SAND OR SILT. • CHIPS OFF EASILY

  27. #15 Rock Cycle • METAMORPHIC: HEAT AND COMPRESSION. IGNEOUS AND SEDIMENTARY CAN BECOME METAMORPHIC. LAY DEEP WITHIN THE EARTH. • CHARACTERISTICS: BANDS OR SHEETS ARRANGED IN PATTERNS; MINERALS ARE FLATTENED OR IS VERY HARD.

  28. # 16 Earth Change Over Time • THE CONTINENTS ARE MOVING AT THE RATE OF 1-10 CM’S PER YEAR. • THE EARTH IS CHANGING AT THE SAME RATE TODAY AS IT HAS IN THE PAST.

  29. # 17 Earth Change Over Time • AS THE CONTINENTS SLOWLY DRIFT, THE WEATHER CHANGES CREATING DIFFERENT CLIMATES ON A GLOBAL SCALE.

More Related