Brain Food

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Brain Food

• Mr. Conner
• Blackman High School

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Main Parts of a Microscope

1. What are the three main parts of a microscope?
2. Labels the picture.

1. Tube with lenses, stage and light

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What Year
When was the term scientist coined?
1840, science was used since 1300
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UV Light Levels in MN
UV light levels are highest in late spring and
early summer. At that same time of year,
Minnesotas frog population is laying eggs. Is
there a cause and effect relationship involved
here? Give your observations.
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Mass and Weight

1. Is mass and weight the same thing?
2. If a rocket has a mass of 105 tons on Earth, will
   the mass be greater, the same or less on the
   moon.
3. If a rocket has a weight of 105 tons on Earth,
   will the weight be greater, the same or less on
   the moon.

• No mass fundamental, and dont change
• weight is relative to conditions
• 105 same
• Less

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Volume and the Egg
The volume of an egg and water in a beaker is
300ml. If the egg is removed, the volume of the
water has changed to 225 mL. 1. What is the egg
volume in cm3?
75 cm3
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SI Meaning
The International System of Units is abbreviated
SI because it stands for the Systeme
International dUnites. This is from which
country?
Germany France Italy Canada
France
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Stimulus
List things that are stimuli to you and your life.
Red light Alarm clock Heat Cold
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Lichen in Antarctica
The flora of Antarctica is dominated by lichen.
Estimate the growth rate. 1mm every 100 days 1mm
every 100 months 1mm every 100 years 1mm every
100 years
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Growth and Development
Does growth and development mean the same things?
Define.
Growth an increase in size Development change
in the form of an organism
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Water and the Human Boy
The human body is what percent water? If a
student has a mass of 40kg
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Staple Crops
Match the Crop with the appropriate country.
Millet and Sorghum Wheat and Barley Corn and
Squash Rice and Soybeans
Europeans Africans Asians Native Americans
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Staple Crops answers
Match the Crop with the appropriate country.
Millet and Sorghum Wheat and Barley Corn and
Squash Rice and Soybeans
Europeans Africans Asians Native Americans
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How Much Oxygen
Each human red blood cell carries 250 million
molecules of hemoglobin. The hemoglobin molecule
can attach up to 4 oxygen molecules. What is the
total amount of oxygen a single red blood cell
with three oxygen molecules can carry?
750 million
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Percent Water
It is said that 70 of a cell is water. Is this
true for camels? For a cactus?
Yes
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Subunits
Subunit of proteins is __________. Subunit of
starch is __________. Sun unit of DNA is
__________.
Amino acidsugarnucleotides
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Lab Teezers
1. What is the number one problem using
coverslips? How do you prevent this?
Problem Air bubbles under slid. Solution Gently
place down one side then slowly let the rest of
the slide down.
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How Many Cells
How many different cell are there in the human
body?

1. 2
2. 20
3. 200
4. 2,000
5. 20,000
6. 200,000

200
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Junk in an Elephant Trunk
Which of the following statements about an
elephants trunk is not true?

1. The trunk is weighs 135k (300lbs)
2. The trunk I composed of skin, hair, connective
   tissue, nerves and muscles.
3. The trunk is used to drink, breathe, grab and
   greet friend.
4. There is too much junk in an elephants trunk.

4
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Dead Cells

• How many pounds of dead skin will a person shed
  in a lifetime?
• 10 pounds
• 40 pounds
• 60 pound
• 80 pounds
• Which of these cells are dead cells??

40 pounds!!!
Skin Hair Nails Teeth
All except teeth
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Organ Size
Which organ is the bodys largest organ?
Heart Brain Skin Large Intestine Liver Kidneys
Skin
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Where the Red Fern Grows
Do ferns grow from seeds or spores?
spores
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Dogs in My Body
Where are the dog related parts in your body?
Canines-teeth
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Body of an Animal
Name all the animal on the human body.
Calf,
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Large Egg
The largest egg in the world belongs to a bird.
Which bird is it?
Penguin Ostrich Eagle Gazelle
Ostrich
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Cell Life Span
Match the cell with its life span.
Intestinal Cells Red Blood Cells Brain Cells
Several Years 120 days Several days
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Bear Hunt
When a bear hibernates in their winter dens,
their body temperature decreases several degrees.
Why is this and is it important.
Yes lower body temperature decreases energy
requirements, so bears can sleep long times
without eating.
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Bacteria Taste Test
Cotton swabyogurt with active cultureplastic
microscope slidewaterplastic coverslipmicroscop
e
Rod shaped bacteria feed on the sugar in milk
(lactose) and convert it into lactic acid.
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Grape vs Raisin

• Which has more water?
• Which has more sugar?

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Reaching Out
How do cells communicate with each other?
By cellular phone
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Got Your Number

1. How many chromosomes does a human have?
2. The organism with the most chrommosomes is

23 pairs Fern

1. Zebra with 1560 pairs (1620)
2. The Ophioglossum reticulatum fern with 630 pairs
   (1260)
3. Elephant with 230 pairs (460)

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Rolling On The River

1. Which is the longest River in the world 6,670 km?
2. Which is the second longest River in the World at
   6,275 lm?

Nile Amazon
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Elvis Biome
Which biome was Elvis favorite.
Grassland
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Rain Forest Destruction
Tropical Rain Forest are being cut down daily.
One-fifth of all the worlds plant species live
in tropical rain forest. Only a small number of
these have been studied.
What are your thoughts on this fact.
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Shrooms
Of the 3000 mushroom species grown in North
America, __________ are poisonous.

1. 70
2. 700
3. 3000
4. 4000

70-80
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Match the Mountain ranges with the appropriate
place.
Caledonian MountainsAcadian MountainsAppalachian
MountainUral MountainsPalisades
MountainsRocky MountainsAndes MountainsAlps
MountainsHimalayas Mountains
ScandinaviaNew YorkNorth AmericaRussiaNew
JerseyNorth AmericaSouth America