VOLVOX
BLEPHARISMA
VINEGAR EELS
MICROSCOPE
MAGNIFIERS
100
What is an observable characteristic of volvox? a. long and thin b. pear shaped c. live together in colonies d. live in vinegar
c. live together in colonies
100
What color is blepharisma?
rosy
100
The vinegar eel is not a fish, but a __________?
roundworm
100
What is the purpose of the eyepiece?
to hold the lenses.
100
Which describes a magnifier? a. a tool used to record our observations b. a tool used to compare solid things c. a tool used to measure long things d. a tool used to see small things closely
d. a tool used to see small things closely
200
Where is the volvox commonly found?
In ponds.
200
What shape are blepharisma?
Pear-shaped
200
Vinegar eels have smooth, slender bodies that are nearly ______________, so it is possible to see its internal organs.
transparent
200
What is the best tool to view things too small to be seen with our eyes alone?
a microscope
200
What two characteristics must a magnifier possess?
transparent and rounded
300
What color are volvox?
green
300
Blepharisma reproduces by binary fission. Which describes the way this single-celled organism reproduces? a. it divides itself in half b. lives in large colonies c. stacks on top of other cells d. many cells stick together.
a. it divides itself in half
300
What makes vinegar eels such a challenge to see? a. the vinegar is a dark brown color b. they are green and live in colonies c. they are the smallest organism we study d. they have muscles the whole length of their body that make them move fast
d. they have muscles the whole length of their body that make them move fast
300
What do you see when you look at black and white newsprint under the microscope?
black dots on white paper
300
What do you see when you look at screen wire through a hand lens?
spaces that look like squares
400
Volvox have two _____________, or whip like tails, that help to move them around.
flagella
400
What does blepharisma eat?
bacteria, or other blepharisma.
400
Why don't we eat vinegar eels in our food that contains vinegar?
Food goes through pasteurization which heats the liquid to a high temperature to destroy the microbes. pasteurization = 400 pts. pasteurization + heat = 500 pts.
400
Annie is making a microscope slide. She puts a piece of sponge of the slide. Under the microscope, it looks like a black blob. She can't see any of the parts of the sponge. What is the best way to make the slide better? a. use a well slide b. turn the slide over c. use a cover slip d. use a smaller piece of sponge
d. use a smaller piece of sponge.
400
Magnification allows us to see
More detail but only a small part of the whole object
500
Volvox is a member of a large group of organisms known as _____ ______
green algae
500
Blepharisma belongs to a group called ?
ciliates.
500
Sue prepared a slide using an onion skin. What did Sue see when she used the microscope? a. a bulb b. a cell c. a nucleus d. an atom
b. a cell
500
What part of the microscope brings light to the slide?
the mirror + 100 pts (light source and mirror)
500
What shapes can magnify an object?
a sphere, side of cylinder, and drop of water
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