Vocabulary
Identifying Examples
Main Ideas
Experiments
Essay Questions
100
What is a characteristic?
A characteristic is a defining detail describing a certain thing, for example, "pretty".
100
How might you see growth and development in a bird?
The bird may grow bigger, change color, eat different foods, learn to fly, grow different feathers, etc.
100
What 4 things do all living things need to survive>
All living things need food, water, living space, and stable internal conditions (maintaining homeostasis).
100
What was one of the experiments a scientist did to help say that living things do not come from non-living things?
There were experiments with two jars with meat, and another with boiled and unboiled broth.
100
From the experiment you did with the bread and the mold, why do you thing the wet bread grew mold more than the dry bread?
The wet bread contained more water, which is important to living things, so the mold grew faster in the better conditions.
200
What is the difference between "unicellular" and "multicellular"?
Unicellular describes a living thing with only one cell, for example, an amoeba. Multicellular describes a living thing with more that one cell, for example, a cat.
200
What is one way people though living things could come from non-living things?
They though that flies could come from rotting meat.
200
What are the 6 characteristics of living things>
The characteristics of living things are that they are made of cells, they contain similar chemicals, they use energy, they respond to stimuli, the grow & develop, and they reproduce.
200
How did the scientist's experiments help to say that living thins do not come from non-living things?
They showed how some meat (or broth) did not turn into flies (or grow bacteria). This showed that the flies did not come from the meat, they came from somewhere else.
200
Name five different places that birds can live, and explain the type of bird that lives there.
Birds could live in: Jungles - parrots Oceans - seagulls Antarctica - penguins Mountains - falcons Prairies - pheasants There are many other places birds could live in as well.
300
What is stimuli?
Stimuli is the thing that makes an organism react, for example clapping in Wasif's face.
300
How might an owl find a good living space?
It might make a nest in a tree or in an old log.
300
Name the two scientists who helped to say that spontaneous generation is wrong.
The two scientists are Redi and Pasteur.
300
Where did the flies come from, if they did not come from the rotten meat?
They came from eggs laid by previous flies on the rotten meat.
300
Describe how a cat might respond to a dog barking at it. What characteristic of living things is this?
A cat might hiss, growl, fluff up its hair, run away, or try to scratch the dog. This is response to surroundings.
400
What is spontaneous generation? Is this true or false? What is true
Spontaneous generation is the idea that living things come from non-living things, for example, flies come from meat. This idea is not true, living things come from living things.
400
A bird sitting in a tree flies away as you walk by. Which of the characteristics of life explains the bird's behavior?
The bird is reacting to you walking by. This is response to stimuli.
400
What is homeostasis? What is one way an organism might maintain homeostasis?
Homeostasis is keeping internal conditions stable. Crocodiles maintain homeostasis by going into the water when they are hot and sitting in the sun when they are cold.
400
What is a controlled experiment?
A controlled experiment is an experiment where only one factor is changed.
400
Describe how you can see all 6 characteristics in an apple tree.
Trees are made of cells, the cells contain similar chemicals to other living things, trees use energy to grow and make apples, if you cut down the tree it will die, trees grow taller and make apples, and trees make seeds inside apples to make more trees.
500
What is the difference between heterotrophs and autotrophs? Give one example of each. (+ 100 points if you can pronounce them both correctly!)
Heterotrophs are living thins that get their food from other places. Rabbits are an example of heterotrophs because they get their food from carrots. Autotrophs are living thins that make their own food (through photosynthesis). Carrots are an example of autotrphs. Most plants are autotrophs are most animals are heterotrophs.
500
Using the 6 characteristics of living things, tell why crystals are not alive.
Crystals are not composed of cells, although they contain similar chemicals (carbon), they do not respond to surroundings, although they can grow they do not reproduce.
500
Why is water important to living things? Give one example of how water is used.
All living things need water to survive. Water helps to move substances around in the body, because 90% of the liquid of your blood is water.
500
Pasteur is famous for a certain discovery to science besides saying that spontaneous generation is not true. What was it?
He was the one who said that milk should be boiled after you get it from the cow to kill bacteria. This is called pasteurization.
500
Viruses are complex organisms that contain similar chemicals to living things. They use energy and respond to surround cells by attacking them. But without cells nearby, viruses cannot grow, develop, or reproduce. Are viruses living things? Explain.
Scientists do not consider viruses to be living things, because they cannot reproduce on their own without a host cell, and they are not cells.
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