Space + Gravity
Earth's Spheres
Chemistry
Ecosystems
Potpourri
100
Draw a model of an orbit and a model of rotation, include the Sun and Earth in each model.
Rotation= Earth Spinning
Orbit = Earth going around Sun.
100
What is the spere that represents all the water on Earth? What is the sphere that represents all of the life on Earth?
Hydrosphere, Biosphere
100
Is their is a change to a substance that causes a new substance to be formed, is that a chemical of physical change?
Chemical Change
100
What is a consumer? What is a producer?
Consumer = Something that eats food
Producer = Something that makes their own food.
100
What direction does the sun rise from?
East
200
At what time of day are shadows longest? At what time are they shortest?
Longest = Sunrise and Sunset
Shortest = Sun directly overhead= Noon
200
B
200
25 grams of oil is mixed with 100 grams of water. What should the final mass of the mixture be?
125 grams
200
What is a decomposer?
An organism that breaks down materials and recycles them.
200
Which direction does Gravity push objects?
Towards the center of mass (Teacher show example of person standing at South Pole)
300
The pattern of day and night is caused by what?
Earth's Rotation
300
Clouds not being able to move past mountains is an interaction between what spheres?
Atmosphere, Hydrosphere (Clouds) and Geosphere (Mounatain)
300
Name 5 signs a new substance has formed/a chemical change has occurred.
Temperature Change, Odor Change, Solid Forming From 2 Liquids (Precipitate), Light Produced, Popping Sound, Bubbles, Color Change
300
All of the energy on Earth can be traced back to ___________?
The Sun
300
If a substance starts as a solid and you heat it up, what does the substance become next? Do the particles now move faster or slower than before?
A liquid, faster
400
What are the two factors that determine how bright stars are to the human eye.
Size and distance.
400
How are each of the 4 spheres involved/impacted when glaciers melt from the Earth heating up.
Atmosphere- Earth Heating Up (Air Temp)
Hydrosphere- Glaciers are turning into water
Geosphere- Shorelines look different because water level has raised
Biosphere- Some people might have to move because their house would now be covered with water.
400
A student was testing the property of magnetism of objects. What objects would the student expect to feel a pull between itself and the magnet. Select all that apply
A. An Aluminum Can B. An Iron Nail
C. Wood Chips D. A Stainless Steel Knife
B, D
400
A cheetah chased down an antelope and ate it. After eating the antelope, the cheetah felt energized. Explain why the Cheetah should be thanking the Sun instead of the Antelope for its newfound energy.
Without the sun, plants would not grow, without plants Antelopes would not be able to survive because they only eat plants. So therefore without the sun there is no antelope.
400
What is the force that makes water a rock sink to the bottom of a lake.
Gravity
500
Explain why we can only see constellations at certain times of the year.
Answer must include
1. The orbit of Earth
2. That the sun is so bright it blocks creates day and blocks are ability to see stars on the other side of the Sun.
500
Explain how the geosphere, biosphere and hydrosphere interact in the following situation: a river flows downhill carrying a Taki wrapper.
Geosphere- Creates the slope for the river to move.
Hydrosphere = River
Biosphere- Humans leaving the trash.
500
A. If the student dropped the tablet into the water bottle and did not close the cap, what is most likely true about the mass of the system.
B. Was this a chemical change or a physical change?
a. The mass will decrease due to bubbles escaping.
b. Chemical change.
500
In the model above what part represents decomposers? What part represents consumers?
Decomposers= Recycling Program,
Consumer - Dog Eats Food or Customer Buys Food at Store
500
What is needed for plants to grow? What is one thing that is not needed, but many people think is?
Needed= Water + Ari
Not Needed= Soil