Eighth GradeTest
1
Hint: From Levels of Organization in the Human Body
TISSUE
meridianlifestyle.blogspot.com/2008/05/human-body htm
A group of cells that work together form a ____ ?
3
The basic units of structure & function in the human body are _______?
CELLS https://genographic.nationalgeographic.com/science-behind/genetics-overview
2
Circulatory &
Respiratory Systems
http://www.uic.edu/classes/bios/bios100/lecturesf04am/lect20.ht
The systems that deliver oxygen and remove carbon dioxide to and from cells in our bodies are the ____ & ___?
4
This structure directs the activities in a cell.
notesforpakistan.blogspot.com/2010/10/structure-and-function-of-nucleus-in.htm
5
These carry messages between the brain and the rest of the body.
nerveshttp://www.pennmedicine.org/health_info/body_guide/reftext/html/nerv_sys_fin.htm
6
Which organ systems help fight disease ?
•immune & circulatory systems
http://creationwiki.org/Lymphatic_syste
7
A group of similar organisms that can mate with each other and produce fertile offspring are called a what ?
species http://journals.worldnomads.com/mattwilkins/photo/43014/972415/South-Africa/A-trio-of-elephants-3-generations-Taken-in-the-Garden-Route-SA#axzz2kT2nTcuA
8
A few organisms got to the Galapagos Islands from the mainland. This was observed by what scientist?
Charles Darwin
http://newswatch.nationalgeographic.com/2010/02/04/charles_drawn_origins_revealed_by_dna_tests/
http://en.wikipedia.org/wiki/Religious_views_of Charles Darwin
←At time of Beagle voyage
9
Similar structures that related species have inherited are called what ?
● homologous structures (homo means same)
http://ircamera.as.arizona.edu/NatSci102/NatSci/images/convergent.htm
10
Two organisms that look similar as an early embryo are probably … ?
… evolved from a common ancestorhttp://www.tutorvista.com/content/biology/biology-iii/organic-evolution/evidences-evolution.php
11
What characteristic of finches showed that they adapted to the foods they ate ?
their beaks
http://ncam.wgbh.org/experience_learn/educational_media/stemdx/exi
12
What does a plant (autotroph) produce in photosynthesis?
sugar (glucose)&
oxygen (O2)
http://www.giglig.com/family/education/what-is-photosynthes
13
WHAT IS PHOTOSYNTHESIS?
The plant cell uses energy from sunlight to make food (sugar).
http://www.giglig.com/family/education/what-is-photosynthes
14
• MOST BIOTIC (LIVING) THINGS NEED THIS PHOTOSYNTHESIS PRODUCT TO SURVIVE.
http://godish.com/channels/english/oxygen.as
15
Heterotrophs (animals) benefit from photosynthesis because . . . ?
. . . they get food from the plants.
http://www.sheknows.com/home-and-gardening/articles /create-a-pest free garden
16
Respiration is ????• glucose being
broken down to release energy
• opposite of photosynthesis
http://newunderthesunblog.wordpress.com/photosynthesis-and-respiration
17
Simply explain the relationship between photosynthesis and respiration.
• OpPoSiTe Equations!!!• Respiration is the opposite equation of photosynthesis.• Photosynthesis uses energy to produce glucose.• Respiration uses glucose to release energy.
6CO2 + 6H2O → C6H12O6 + 6O2
photosynthesisenergy in
energy out
respiration←
18
Problem• Two liquids - very similar.• How may we tell them
apart in the laboratory?
Answer
• Try heating them up and observing when they boil.
http://science.taskermilward.org.uk/mod1/KS3%20Cover/Cover%206.ht
19
Problem:• Sometimes we need to
study not one but several characteristics of a substance. WHY?
• Can you give an example?
Answer:• Some substances have
many characteristics in common.
Example: powdered sugar, flour, baking powder and baking soda are all soft white powders.
http://2.bp.blogspot.com/-tqx9bpKygus/Tzjs4LJ_ykI/AAAAAAAAnB0/I3iCIsOCU6A/s1600/white%2Bpowders.JPG
20
An object has this measurement due to the force of gravity . . . . . .
W E I G H T
21
The amount of matter that is in something is its what ?
•masshttp://www.mathematicsdictionary.com/english/vmd/full/m/mass.ht
22
• I am the smallest part of an element that is still that element.•atom
http://www.mrkscience.com/planbook/Physical%20Sci.%202010-11/March11.ht
23
• These examples show new substances being formed.
• What is this type of change?
Chemical Change
http://www.ric.edu/faculty/ptiskus/chemical
fireworks
www.learner.com
rusty nail
http://padillasjournals.edublogs.org/files/2011/05/FriedEgg-220v87n.jp
fried egg
vinegar & baking soda reacting
http://colet.pbworks.com/w/page/Pancakes%20(Chemical%20changes)
baked goods
http://www.harpercollege.edu/tm-ps/chm/100/dgodambe/thedisk/chemrxn/signs2.ht
color change
→←
24
• These examples show a substance changing its form or state of matter only.
• What is this type of change?
Physical Change
←tearing paper
http://www.bbc.co.uk/bitesize/standard/chemistry/elementsandreactions/chemical_reactions
http://www.learner.org/courses/essential/physicalsci/session4/closer1.ht
ice melting
http://www.learner.org/courses/essential/physicalsci/session4/closer1.ht
25
When the distance between two objects is changing, it is in . . .
•MOTION
http://commons.wikimedia.org/wiki/File:Newtows cradle
26
We use the METRIC system (SI) in science. SI = Scientific International• Which is a measure of
length in the metric or SI system? meter
http://www.dickblick.com/products/westcott-thru-aluminum-yardmeter-stick
27
Speed formula ????
http://www.racemath.info/motionandenergy/speed.ht
28
MOTION is graphed by plotting distance and ?
Timehttp://www.mentorials.com/high-school-physics-rest-and-motion-speed-and-distance.htm
29
How fast or slow something is moving.• The steepness
of the slope in a graph on motion shows what?
http://www.vacationhomerentals.com/vacation-rentals/Lake-Arrowhead-California-vacation-rental-cabin-proID-.ht
http://www.rotinrice.com/cheese-fondue/
30
• JOULES
Energy is measured in units called ?
http://en.wikipedia.orgi/Joule
31
What is energy of motion called?
•kinetic energy
http://astronomyonline.org/Science/KineticEnergy.as
http://physics.tutorcircle.com/energy/types-of-energy.ht
32
IF KINETIC ENERGY OF AN OBJECT INCREASES . . .• Are mass and velocity proportional
or indirectly proportional to that energy?
• Answer: Proportional or positively correlated.
• According to the formula, as the energy increases so do the mass and velocity.
Try setting upthe formula and plugging in some numbers.
Albert Einstein
If E = ½ mv2 the m and the v are also on the top part of the equation like the E, so they are positively correlated. That means as one increases or decreases, so does the other!
33
Rub your hands together.• What is the friction energy
called and what type of energy is it being converted to?
• The rubbing is mechanical energy (movement) and is converted to thermal energy (heat).
http://www.mikecurtis.org.uk/ks2_friction.ht
34
Chemical potential energy of burning fossil fuels converts to what kind of energy?
• Thermal energy
http://www.greenribbonschools.org/activity-detail.php?id=1096&resId
35
Coal, a fossil fuel, stores ___________ energy.
• https://www.cdli.ca/courses/ep/predesign/t03/02knowledge-skills/act
• chemical potential energy
36
Which illustration(s) show kinetic energy?
1 ↑
4 ↑
http://www.tutorvista.com/physics/examples-of-kinetic-energy
http://science.jrank.org/kids/pages/50/KINETIC-VS-POTENTIAL-ENERGY.html
http://www.ehow.com/how_4517200_calculate-kinetic-energy-joules.html
http://isci.greenwich.wikispaces.net/Farnum+-+Energy+Transformations
3 ←
2 ↑
All of them!
37
• stored energy.
Kinetic energy is energy of motion, potential energy is . . .
http://www.encyclopedia.com/topic/Potential_energy.as
38
• When
height is part of the potential energy equation, what type of energy are we observing?• gravitational potential energy
Old Man in the Mountain New Hampshire
THE PHOTOGRAPH ABOVE SHOWS IT BEFORE FALLING!
http://daniellehunter.wordpress.com/2011/08/21/old-man-on-the-mount
http://gonewengland.about.com/
39
•Energy can neither be created nor destroyed!
What is the law of conservation of energy ?
http://www.kidsahead.com
40
Geologists can observe the Earth’s interior by . . . ?
• recording and analyzing seismic waves.
http://web.ics.purdue.edu
41
What was Wegener’s hypothesis about our continents?
http://www.tectonics.caltech.edu/outreach/animations/anim_pangaea/Resources/anim_pangaea.mov
The continents were once a single land mass that drifted apart called continental drift.
42
•What is the name given to our continents when they were one land mass?
Pangea
http://geology.csupomona.edu/drjessey/class/Gsc101/Plate.html
43
SonarThis was a technology used in the mid-1900’s to map the mid-ocean ridge.
http://www.divediscover.whoi.edu/tools/sonar-singlebeam.html
44
•When the sea-floor spreads, molten material erupts (rises) from what part of the mantle?
…along the mid-ocean ridge!
www.daviddarling.info
45
• How do we know that rocks further away from the mid-ocean ridge are older than those near it?
• We determine the age of the rocks that have been drilled up in those areas.
www.newark.osu.edu
46
subduction
•What is the process called where the ocean floor sinks beneath a deep-ocean trench and back into the mantle?
• www.zmescience.com
Sub means below
47
Old oceanic crust is more dense than new crust. Why?
It has cooled down. Cooler molecules are closer together and therefore more dense.
forum.spore.com
48
… convection currents in the asthenosphere.
• The movement of Earth’s plates are probably caused by what?
nees.org
49
The geological theory that states that pieces of the Earth’s lithosphere are in constant, slow motion is the theory of ___?
• plate tectonics.
volcanoes.usgs.gov
50
What is the longest chain of mountains in the world?
the mid-ocean ridgewww.scientificamerican.com