Answer:
Maria and her classmates generated some questions after a field trip to a copper mine in Arizona. Which ones could be answered through scientific investigation?
Is copper the best metal for conducting electricity
Is mining for copper bad for the environment
How much copper is extracted from the mine each day
The above mentioned could be scientific proven as it involves all steps through highlighting aims and objectives, methodology, precautions among others
Explanation:
Scientific investigations entails different ways to be achieved, every scientific investigations must be titled, has a methodology, aims and objective, hypothesis, review of other related literature, conclusion, references before it could be validated after it has been well published.
Answer:
Hail is harder than ice because of the formation, hail is formed in the atmosphere in storm clouds when water droplets collide with supercooled waterdrops in the upper atmosphere in subzero temperatures, instantly turning them to ice in the process. And it keeps building and turning into a sphere shape, and as it gets bigger the harder and more sturdy it gets, making it harder than ice.
KE=0.5 x mv 2
Here m stands for mass, and v stands for the velocity.
Answer:
In order to propose a hypothesis, there is a need to first see the function of gills in fishes. The gills of fishes comprise blood vessels that exhibit inherited tendencies of getting oxygen out of the water, which was consumed by fishes from their mouths. These gills also comprise thin walls, and when water moves over these walls of blood vessels, the oxygen from water moves into the blood, and then this oxygen-enriched blood goes to various organs.
Thus, one of the hypotheses in the given case, can be the number of blood vessels, which are found in the gills of the mentioned freshwater fish to be higher in comparison to the blood vessels found in the normal fishes, and apart from this, the surface area of the thin walls, which are found in the gills is also more in the new species of freshwater fish.
G...eventually the larger fish would catch on that these smaller fish are a problem.