Tanya Harrison is a planetary scientist and a photographer. My class and I had the honor of skyping with her and asking her questions about mars, space, photography etc.

here is a link to her website: http://tanyaofmars.com/

Our Skype chat was only on air for about 3 minutes due to some audio difficulties.

Question: How do the rovers move?

Answer: the rovers are controlled by people who send them commands from computers. Since Mars is very far away from us, there is always about a 40 minute delay between the commands and the rovers actions. The delay would vary in time depending on how far away Mars is from Earth. the rover moves at about 0.14km/h. Workers’ call time depends on what time it is on Mars. Since Mars time is only 12 hours in one day, workers might have to be at work in the middle of the night so that they can control the rovers on time.

Aside from learning how rovers function, we were also one of the first people to find out that they found solid evidence of water being on Mars. Check it out in the brief 3 minutes our Skype chat was on air:

Interphase: the chromosomes before they are duplicated

Mitosis: prophase- replicated DNA molecules join together to form sister chromatins

Pink strings: Spindle fibres

Nucleus is gone

Metaphase: chromosomes line up in he middle

Anaphase: sister chromatins sperwte and repel to opposite sides of the cell

Telophase: spindle fibres disappear

Two nuclear membranes form

Cytokinesis: the cell divides into two

A model of DNA using licorice and marshmallows.

licorice: phosphate backbone

Green: guanine (G)

pink: Cytosine (C)

yellow: adenine (A)

orange: thymine (T)

No fruits or vegetables lit up the bulb

Kiwi: -1

Carrot: +2.5

Carrot: did not light up the bulb

Potato: +1

Orange: -1

Observations: 

We put the nail and copper in already existing holed in the fruits.

we didn’t try switching the cords.

we weren’t sure if the light bulbs even worked.

the alligator clips didn’t fully close and sometimes slipped off.

Questions:

What kind of circuit will produce electrons flow in your fruit/vegetable  cell? 

A series circuit.

If your bulb doesn’t glow, how can you find out if electrons are flowing?

You can see electrons are flowing if your voltmeter moves

If your bulb doesn’t glow, why not?

There is not enough power and electrons aren’t glowing

How can we modify out experiment to improve our results?

Make sure your cords are correctly plugged

What is causing electrons to flow in this experiment?

The cords

How can I use this in my everyday life?

When the power goes out, you can turn on a light bulb.

my hypothesis is that the potato will produce the best electricity because it has the least amount of water and is the most dense.