Matter and Particles
If you dissolve 10g of sugar into 100g of water, this is the total weight of the new solution?
110g
This is the original source of almost all energy in every food web on Earth
The Sun
What are Earth's 4 spheres?
Biosphere, Hydrosphere, Geosphere, Atmosphere
We see different constellations in the summer than we do in the winter because of this Earth movement
Orbit
What is technically the 4th state of matter?
Plasma
Why is a balloon inflating evidence that air is matter?
Matter has weight and takes up space. When air is put in the balloon it adds to the total weight and takes up space
These organisms are responsible for returning "dead" matter back into the soil as nutrients
Decomposers
Of all the water on Earth, this is the approximate percentage that is Fresh Water available for humans to drink
3% freshwater, 1% currently liquid
What causes the phases of the moon?
The moon's orbit around the Earth and the sunlight we can see on it
Name a decomposer, a consumer, a producer, and an apex predator (50pt/ea)
Answers vary
When a scientist sees bubbles, a color change, and a temperature shift after mixing two liquids, this type of change has occurred
A chemical change
In a food web, if the population of snakes decreases, describe the immediate effect on the grasshopper population (their prey)
It will grow and there will be consequences across the food web
How old is the water on Earth? How do we know?
4.5 Billions years. Conservation of matter
What is caused by Earth's rotation? Orbit? Tilt? (100pts/ea)
Days, years, seasons
When rain (Hydrosphere) hits a mountain and washes away rocks (Geosphere), this process is called
Erosion
A student weighs a bottle of vinegar and a balloon filled with baking soda separately. They then mix them inside the sealed bottle. If the scale stays the same even though a gas was created, what scientific law does this prove?
Conservation of Matter
In a New Mexico desert ecosystem, a drought kills off most of the cacti (producers). Describe the "domino effect" this has on the hawks (tertiary consumers) at the top of the food chain.
With fewer producers, there is less energy for primary consumers (insects/rodents), leading to their decline, which eventually leaves the hawks with no food source.
Draw and label the water cycle. Use academic vocabulary
answers vary
How many stars are in a galaxy? And how many galaxies are in the universe?
Billions and billions.
billions x billions = quintillions of stars in the sky!
What is the brightest star in the sky?
Sirius/Sun
What's it called when matter changes states? (100pt/ea + 100 if all correct)
Solid -> Liquid
Liquid -> Gas
Gas -> Liquid
Liquid-> Solid
Melting, evaporating, consensing, freezing
If a scientist discovers that a specific plant is growing rapidly without any soil at all (hydroponics), what two things is the plant primarily using to build its physical structure (mass)
Air and Water
Describe an interaction between the Hydrosphere and the Biosphere
Plants/animals/humans drinking water to survive. Answers may vary
If a lightyear is 186,000 mi/second, and the Earth is 993,000,000 miles from the Sun, what EQUATION would you use to find out how long it takes light from the Sun to reach Earth
time = distance/speed
time = 93,000,000/186,000
BONUS time = (93,000,000/186,000) / 60
How do we know that the Earth orbits around the Sun and not the Sun around the Earth?
pendulums. stellar parallax