Connected on 2014-12-10 14:00:00 from Tulsa County, Oklahoma, United States
- Bugscope Team sample is in 'scope and pumping down
- Bugscope Team we are ready to roll!
- Bugscope Team be right back!
- Bugscope Team alright, we are good to go for sure
- Bugscope Team Welcome to Bugscope!
- Teacher Hello we are Zarrow
- Bugscope Team This is the tip of the rostrum of the wheelbug, and we can see that it is in a groove that it makes a scraping noise with.
- Bugscope Team you have control of the microscope and can make it drive to any of the presets shown on the lefthand screen
- Bugscope Team also, please let us know when anyone has any questions at all\
- Teacher We are first and second graders. What is the rostrum?
Bugscope Team the rostrum is the tip of the piercing mouthpart of the wheelbug
- Bugscope Team the rostrum is is like a jackhammer, and wheelbugs are predators that feed on other insects
- Bugscope Team they have a half-wheel shape on their back, on the dorsal side
- Teacher Why is it called the wheelbug?
Bugscope Team because on its back it has what looks like a half wheel, kind of like a stegosaurus does
- Teacher Does the wheel bug have wings?
Bugscope Team yes when they become adults, like this one. they do not fly superwell
Bugscope Team super well... they are kind of clumsy fliers
- Teacher What are the parts on the sides of that image?
Bugscope Team Do you mean the little dots next to the insects? That is the carbon paper
Bugscope Team to the left and the right on the head we see the eyes
- Bugscope Team this is really cool -- it is how the wheelbug makes noise
- Bugscope Team and these are tenent setae, which are like hairs that help insects stick to surfaces
- Teacher The image we are seeing now?
Bugscope Team they are setae, which look like hairs to us; these help the insect cling to things
- Bugscope Team Hello Benitez!
- Bugscope Team the leg is broken off just beyond where we are now
- Student Hello there!
- Bugscope Team so this gives us a slightly better view of the setae
- Bugscope Team they are comparable to the tiny setae that geckos have on their little hands
- Bugscope Team the sample moved after we made that preset
- Teacher We also wonder what a ventrum is
- Teacher We had a question on why the bugs have to be dried out for the microscope.
Bugscope Team the specimen chamber of the microscope needs to be under vacuum so we can beam electrons at the samples and also collect electrons back from the samples that make the images we see here. if there was no vacuum in the chamber it would be like trying to turn on a lightbulb that was broken
- Bugscope Team if the bugs in the microscope were wet, we could not get a good enough vacuum in the specimen chamber to see the samples
- Bugscope Team also the samples must be coated with gold-palladium -- a metal alloy that in this case is very thin -- to make them conductive so we can get good images like this
- Bugscope Team we see only black and white, gray scale images because we are not using light; rather, we are using electrons, which are super small and do not have color\
- Teacher What are the spiky-things called on the pollen, and what is a ventrum?
Bugscope Team they might be called spikes, or spines; the ventrum is the underside
Bugscope Team you know how a shark has a dorsal fin that we can see when it swims close to the surface? the top side of the shark is called the dorsum, and the bottom side is called the ventrum. that works with insects as well
- Teacher What eats the wheelbug?
Bugscope Team maybe birds or mice, but it can produce bad smells, kind of like a stinkbug, if larger animals are bothering it.
Bugscope Team the wheelbug can also bite -- it can bite people!
- Bugscope Team this is the praying mantis
Bugscope Team Praying mantids are the only insects that are capable of turning their heads to the left and right :)
- Teacher We had a question on how you dry the bugs out.
Bugscope Team we look for bugs that are recently dead, and we put them in open jars so the air will dry them out
Bugscope Team sometimes we freeze bugs to kill them, and we also dry them the same way
- Bugscope Team sometimes people send us bugs that live the early part of their lives under water. mosquitoes do that, and also caddisflies and stoneflies and many other insects
- Bugscope Team the larval stage, which is the same as the caterpillar stage, lives under water
Bugscope Team in some insects
- Teacher Why is it called the praying mantis? Sorry, we were having a discussion about your answers
Bugscope Team it's called a praying mantis because when it is standing around it looks like it's praying
- Bugscope Team this is a larval insect, and we are looking at the underwater stage
- Bugscope Team when we get insects that live underwater, we have to dry them a different way so they will not shrivel up like a worm
- Bugscope Team the limbs that make the praying mantis look like it is praying are actually raptorial limbs that help it grasp its prey
- Teacher Was that one of the bugs we sent in? Which one was a stonefly?
Bugscope Team this is the stonefly larva; I am not sure if you sent this in or not (did you?)
Bugscope Team Cate made the sample, and she had to go rescue her kids this afternoon
- Bugscope Team when we get to look at water insects, we find that sometimes they have cool creatures on them that also live in the water
- Bugscope Team this thing that looks like a guitar case is a diatom!
- Bugscope Team diatoms are single-celled algae (I think they're considered algae) that have silica shells -- like glass
Bugscope Team yes I looked it up -- they are algae
- Teacher Why is it called the stonefly?
Bugscope Team I am sorry -- I do not know why it is called that. I have been trying to find out!
- Bugscope Team this is the compound eye of a rolypoly
- Bugscope Team we cannot see the facets of the compound eye very well - they are covered with some kind of film
- Teacher Why are there bumps on the roly poly eye?
Bugscope Team it looks like there are about 20 bumps, and each is a lens of the eye
- Bugscope Team the bumps themselves are called ommatidia
- Bugscope Team when you look at the grasshopper compound eye you will see that it has many more ommatidia, and they are both hexagonal and flattened
- Bugscope Team cool!
- Bugscope Team yay! this is the grasshopper's eye. the grasshopper's head is so big we could not see it at one time using the scanning electron microscope, which goes as low as only 37x.
- Bugscope Team this is cool because we can see the end of one of the mandibles (jaws)
- Bugscope Team palps are the things that are flattened out like marshmallows, and insects use them to both taste and manipulate their food
- Teacher What is the palp?
Bugscope Team they are accessory mouthparts, little 'feelers' that help the insect eat
- Teacher We had a question of why they look like feet in the picture?
Bugscope Team they do! often they look just like extra arms and legs, but insects usually have claws at the ends of their legs
- Bugscope Team there are usually two pairs of palps
Bugscope Team some insects have modified palps such as butterflies - their palps have become parts of their proboscis (drinking tube)
- Bugscope Team this is what an insect claw looks like -- it's an ant claw!
- Teacher What does the plier ant comb do?
Bugscope Team it helps the plier ant keep its antennae clean, very much like we comb our hair
Bugscope Team antennae are crucial things to have if you are an insect
- Bugscope Team antennae have lots of chemoreceptors on them that allow ants and other insects to taste the chemical scents in the air and also by touch
- Bugscope Team this is a katydid wing that Cate mounted on the stub for us today
- Bugscope Team if we look up close we will see that those little divisions are tiny low walls with spines on them
- Bugscope Team see the broken spine, on the right?
- Bugscope Team so cool!
- Teacher Yea, it is really cool!
- Teacher Why does it look like the wings are scales?
Bugscope Team it's because many wings are are broken up into these small sections called cell - some reasons for amount of these cells may be wing size and use. However, scales can be lost or removed for escape purposes and don't cause any real physical damage to the insect and these wing sections if they are removed can eventually lead to an insect being un able to fly
- Teacher Why do the wings have similar shapes as the grasshopper eye?
Bugscope Team we see that kind of geometric pattern often in nature, as in the shapes of the components of a wasp nest or hive
Bugscope Team eye facets are also hexagonal, and we think that is because it turns out to be the best shape for close-packing of objects that are essentially round into a dome
- Teacher Can we ask you some questions about being a scientist before we finish?
Bugscope Team Sure!
- Teacher We love science, and we have some 1st and 2nd graders who want to be scientists when they grow up.
Bugscope Team Sweet!
Bugscope Team Woo! Science is awesome :)
- Teacher Also, what kind of tools do entomologists use?
Bugscope Team All types of tools, but it depends on what kind of entomologist you are, most entomologists use forceps, microscopes (all types), and a net
Bugscope Team Some use computers for programing
Bugscope Team it all depends on what your focus is. Chemisty, Molecular biology, ecology, etc...
- Teacher How can we become a scientist?
Bugscope Team one person we work with sometimes really loves mosquitoes, and she wrote a famous person who studies mosquitoes and asked if she could work in his lab
Bugscope Team but most of us probably took a lot of science classes and had a lot of fun
Bugscope Team The main part about being a scientist is observing and asking questions! How does this happen? Why does it happen? etc
Bugscope Team Most people are already amateur scientists :)
- Teacher What made you want to be a scientist?
Bugscope Team I wanted to be able to use electron microscopes to look at things we cannot see with our eyes
Bugscope Team I like it when the images come into focus
Bugscope Team I like being out in nature
Bugscope Team In general though, I just find science very interesting and exciting. I have a degree in both chemistry anderntomology and I find ways to incorporate both fields at once. Additionally, I work on engineering projects as well because I like to design and build as well
- Teacher Thank you, sorry, we have to go home from school. Science is awesome! We had lots of fun. Hopefully we can do this again. We liked spending time with you all.
Bugscope Team Thank You! This is super fun for us, and we enjoyed working with you!
- Teacher One first grader said, "I wish we could do this every day!"
Bugscope Team Yay!
- Bugscope Team see you next year!
- Bugscope Team Thank you, Everyone!