Earth & Space
Which direction does gravity always pull us, no matter where we are?
DOWN! Towards the Earth.
All matter is made of _______.
All matter is made of ATOMS.
What kind of organism makes its own food?
A producer (plants are an example of a producer)
Magnets ATTRACT when...
when OPPOSITE poles connect (north pole and south pole)
How are producers and consumer connected?
Example: Producers produce oxygen that consumers inhale. Consumers produce carbon dioxide that producers use.
How long does it take the Earth to complete one rotation?
24 hours
Matter can never be ________ or _________, only ___________ from one form to another.
Matter can never be CREATED or DESTROYED, only CHANGED from one form to another.
This organism breaks down dead materials and returns the matter to the ecosystem as nutrients.
decomposers (ex: fungi, mushrooms, bacteria, worms)
What problem was the dance teacher most likely trying to solve by changing the setup of the cubbies?
B. Some students could not reach their cubbies.
Salt water. The Earth's oceans hold most of the water and they are all salt water.
Why are some stars brighter than others?
This occurs when the mixing of two substances creates a new material that was not there before.
A chemical reaction.
Plants produce these 2 things during photosynthesis.
What are oxygen and glucose (sugar)?
Which of the following BEST describes the function of the part labelled "W" in the design?
D. It blocks heat energy from entering the box.
What days are Science MCAS
Wednesday, May 17 and Thursday, May 18
Why does the moon appear to change shape, or go through "phases?"
Because the moon orbits the Earth so the angle of the sun's reflection off the moon changes.
Substance A weighs 200 grams. Substance B weighs 50 grams. How much will a mixture of A and B weigh?
250 grams.
200 grams + 50 grams = 250 grams.
This is the source of all energy in an ecosystem.
The sun.
Which of the following best describes the process of changing letters into Morse code?
B. encoding
encoding = putting something into a code
decoding = taking the code apart
What causes puddles to disappear after it rains?
Evaporation. After the sun comes out or the temperature warms up, the water from the puddles evaporates into the air.
True or False: We always see the same stars. WHY/WHY NOT?
False! The stars we see depends on what season it is. The Earth faces a different part of space each season.
What kind of gas is created when you combine baking soda and vinegar?
Where do plants get their matter from?
From carbon dioxide (CO2) and water (H2O) in the environment.
Fan question - 2 parts
C for both!
When a tuning fork is hit, it vibrates and makes a sound. A picture of a tuning fork is shown.
move the water