Data:
record the results of each of the test runs you make to the train station. be sure to describe any changes you make to your train between each
test run.
train one
train two
train three
test results?
any redesign?
test results?
any redesign?
test results?
track one
track two
track three
analyze data and refine design:
this section will include an analysis of your test results and plans for redesigning your train. write in complete sentences.
1. were any of your train designs able to get their cargo to the train station without crashing?
a. if yes, describe the design of the successful train.
b. if no, describe the design of the train that got closest to the station.
2. which of your criteria presented the most challenge to getting the train to its goal, and why?
3. which limitation was the biggest roadblock to getting the train to the station?
4. why was it important to have endothermic and exothermic processes in the building materials of your train?
a. which engines released thermal energy in an exothermic reaction?
b. which engines absorbed thermal energy in an endothermic reaction?
5. if you could add any building item options to your virtual train to improve its design, what would those items be, and why would you need to
add them?

your answer should be c) enjoy!

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."