Answer:
if you are talking about earths center, "the core " is composed of iron ,nickle and orther metal elements that make up "alloy"
Explanation:
It'll still be about 30 minutes, being able to complete a specific task that you must be taught first isn't hereditary, so it'd be about the same.
For instance, if a woman is an amazing pianist, and she has a daughter, would the daughter also be a professional pianist automatically? No, she'd have to be taught how to play first. Sure, certain genetic traits that may help play piano more easily may have a say in it, i.e., longer fingers, but the talent of playing piano isn't passed on from mother to child through reproduction.
Answer:
3
Explanation:
The arrows show the transfer of energy through prey and predator. When the deer eats the leaves, energy from the plant is transferred to the deer.
Ok, a few things here:
This is an egg drop experiment, so I'm assuming you are testing out different ways of protecting the egg.
The independent variable is what you want to change: This would be the type of protection you have on the egg
The dependent variable is what would be effected by the changes in the independent variable: which would be something like the integrity of the egg after it hits the ground. You'd have to measure that somehow.
There are two types of controlled variables: <em>Internal and External.</em>
Internal variables are within the scope of the experiment and can be controlled, whereas external variables are outside the scope of the experiment and we have no control over them.
Internal:
- Height of the drop
- Type of egg
- Person dropping
- How the egg is dropped
- Surface being dropped on to
External:
- The person designated to drop the egg is sick
- You run out of eggs to drop
- Somebody loses all the planning for the experiment
- The weather forces you to do the experiment inside versus outside
- The wind blows your egg off course, leading to it hitting the ground at an angle
So, the way your teacher "chucks" the eggs off the roof should be a controlled internal variable. The action should be done as consistently as possible to avoid an uncontrolled variable.
People can get chemical energy from food (carbohydrates)
