Have a question? My team and I are happy to hear your questions and get you answers! When you type a question, it shows up not only on that experiment but also here so you can easily find your answer. You'll find question boxes at the bottom of every experiment in the program.

Question: from juneair6 about the Introduction to Creating a Homemade Weather Station experiment :

Hi Aurora, We are not able to access the video for the homemade weather station. It takes us back to Introduction to Creating a Homemade Weather Station. Please advice. Nina

Question: from lynn_mcaleece about the Answers to Cardiovascular System Exercises experiment :

I think #14 is incorrect. ALL veins carry oxygen-poor blood back to the heart. The pulmonary ARTERY (not vein as you've indicated) is the only ARTERY that carries oxygen-poor blood. https://my.clevelandclinic.org/health/articles/17059-how-does-blood-flow-through-your-body These kinds of mistakes are really confusing to those of us trying to teach something that is already confusing and complicated. I'm really frustrated by these kinds of things in your content along with the typos that don't seem to get addressed. I've been pointing them out in comments when I can, but feel like you really don't care about fixing them, so I'm not going to waste my time on that any more. This one, though, is more than a typo.

Question: from mad_tea_party about the Newton's First Law of Motion experiment :

Is the Answer page correct for Q. #3? It says, "like a quarter-mile," rather giving which one, either the lighter or the heavier.

Answer:  Introduction to Kinematics

You're right - the first two pages from this download are missing. I've re-uploaded it, so please check again. I notice there's not a lot of room between questions like there is for the rest of the HW sets, so I'll fix that soon, but I wanted to get this to you right away so you have it. There's a blank set without solutions first, and then the solutions are at the end. Does that help?

Answer:  Flashlight Laser Tag

I will make sure my team gets back to you right away!

Answer:  Underwater R.O.V. Project

I know - it's so sad! Here's a list of all the Radio Shack components we have listed on our website along with where you can find them now: https://www.sciencelearningspace.com/2016/08/radio-shack-component-replacements/

Question: from lgargiulo about the Gravity Go-Karts experiment :

suddenly physics is not cooperating, we've been doing physics for several months and now I suddenly am seeing that I don't have access.

Question: from nrobarge about the Introduction to Kinematics experiment :

Can you post a copy of the kinematics problem set without solutions? I am only seeing it with solutions, and it would be nice to have a blank copy to try on our own first. I did check, and the next chapter has it blank at the front and then has solutions at the end. Thanks!

Question: from karenhilligoss about the Flashlight Laser Tag experiment :

I am enrolled in the 9-12 grade but it says that I am only in the k-8 program. Help!

Question: from lambersc about the Underwater R.O.V. Project experiment :

Where can I get the 12VDC motors the radio shack one that you mentioned is sold out :I

Question: from lynn_mcaleece about the What Happens to Food after You Put it in Your Mouth? experiment :

Please fixate typos in this section. There were a number of them again, which make the content more complicated than it needs to be.

Question: from catherine_pruitt about the Magnetic Tornadoes experiment :

COOL!!!

Question: from catherine_pruitt about the Cosmic Ray Detector experiment :

Ok thanks

Answer:  Mechanical and Electromagnetic Waves

The idea with the example is that the device sticking out under the ship to detect the ship is completely surrounded by water. It's a really simple example for sound wave detection.

Answer:  Flashing Circuit

That's a great idea!

Answer:  Flying Paper Clip

You can find stronger magnets sometimes in unusual places, like latches and doors that pull themselves shut, in motors of toys, and other places. The ones in the video were about $2 from the store.

Answer:  Cosmic Ray Detector

Which part are you having trouble with? I can take a video and show it working - not sure why I didn't do that in the video! Sorry about that. You'll have the best luck with static electricity experiments on days that are warm and dry. If it's raining outside, it's not going to work (the water moisture in the air discharges any static build-up). The only other thing that can go wrong is that the mental rod you use is wrapped in insulation or the foil leaves are crimped together and not able to fly apart. Feel free to show me your setup ([email protected]) so I can see what's going on with your experiment so I can help!

Answer:  Eggshell Crystals

Yes you can use epsom salts, sugar, or table salt. You'll be making different types of crystals, but they all look about the same.

Answer:  Shopping List for Unit 7

Restaurant supply stores and some grocery stores also may sell it as well!

Answer:  Special Science Teleclass: Magnetism

Aww - thank you so much!

Answer:  Reading about Food and Digestive Systems

Thanks for letting us know - I am surprised there are so many as we had a professional editing company proof our material before publishing. Thank you for letting us know, and I did get the previous message and had it re-done as requested. I do apologize for the errors - I know how distracting it can be when language is not correct.

Question: from lynn_mcaleece about the Reading about Food and Digestive Systems experiment :

Please fix the many typographical errors on this page. I've submitted separate suggests via "Contact Us," suggesting that I notify you when I see typos, but I don't have time to point out the many on every page, nor should I have to do so when I am paying for this subscription. I would expect that you would have staff to do that job. That there are so many typos reduces the credibility of the information you are trying to present. It's very distracting.

Question: from apbaine about the Flying Paper Clip experiment :

My magnets were not strong enough. The paper clip did not as do in video.

Question: from catherine_pruitt about the Cosmic Ray Detector experiment :

We can't do it can you show it in a video next time?

Question: from nabreo about the Eggshell Crystals experiment :

Is there a substitute for the Alum? -Nicole

Question: from jellybeen64 about the Shopping List for Unit 7 experiment :

Welding supply stores sell dry ice.

Question: from ebrice about the Flashing Circuit experiment :

Hi. We were having a hard time keeping the transistors straight, so I put white nail polish on the tops of the NPN and pink on the top of the PNP.

Question: from bac051201 about the Mechanical and Electromagnetic Waves experiment :

Dear mrs. Aurora, Wouldn't the sound be able to pass through the freshly released oxygen from the ship??

Question: from apbaine about the Special Science Teleclass: Magnetism experiment :

I have the strongest magnet in my house.For this experiment,i'm going to use it for the experiment. Love your classes-apbaine

Question: from o_Asterix about the Ray-Finned Fishes, Lobe-Finned Fishes, and Sharks! experiment :

that is one cool pufferfish!

Question: from o_Asterix about the Amazing Octopi experiment :

Wow!

Question: from lorannakitchen about the Balloon Gymnastics experiment :

wow! ()_()

Question: from lorannakitchen about the Measuring Power experiment :

waaaaaaaaaaaaaaaa

Answer:  Introduction to Creating a Homemade Weather Station

Hmm, that does not sound right. It's a K-8 level experiment. I'll have my team take a look and correct any issues. Thanks for letting me know!

Answer:  Catapults

I think so - which part are you using it for?

Answer:  Bacteria Micromotor

Oh no! That's not right. We actually have a professional editing team that proofs everything for us. I'll have them take a look.

Question: from melissa_bachmann about the Bacteria Micromotor experiment :

There are several typos on this page "Since bacteria are made of only one cell, they are very cell." as one example. I recommend proof-reading this page.

Question: from lorannakitchen about the Catapults experiment :

would a chopstick work instead of a dowel?

Question: from lorannakitchen about the Bobsleds experiment :

neat!

Question: from apbaine about the Catapults experiment :

You like breaking expensive stuff. lol XD

Question: from debbie_banks about the Introduction to Creating a Homemade Weather Station experiment :

I found the making a homemade weather station under the grade 3 Earth Science section, however, there is a note saying that it is for high school students. Is this correct?

Question: from apbaine about the Pendulums experiment :

It is like the frequency experiment.I will probably like this experiment. Signed-Apbaine

Question: from lorannakitchen about the Roller Coasters experiment :

this was fun!!!!! :) :) :)

Question: from Crabbyjean333 about the Classifying Objects experiment :

This was so much fun! We classified our buttons right down to the "species"! I definitely think it's a good beginning activity before introducing classifications because it gives the kids a hands on understanding of the concept.

Answer:  Monocots and Dicots

Sure! What did you want to know specifically?

Answer:  Soaking Up Rays

IF you have a strong light, like a car headlight that can work. Get your parents to help you as you position your experiment in front of the light and they can turn on (just the lights, not the car).

Question: from o_Asterix about the Monocots and Dicots experiment :

Are you going to add something about conifers?

Question: from o_Asterix about the Giant Veggies! experiment :

Wow

Question: from o_Asterix about the Yeast, Mold, and More! experiment :

Cool!!

Question: from bac051201 about the Telling Time by the Stars experiment :

Cool! It's like your an how hunters used to tell time while they were out hunting!

Question: from apbaine about the Soaking Up Rays experiment :

Hi, Is there any alternative for sun light. Where I live it's very gray and we barley get any sunlight during winter because it's so rainy. Thanks- Sophia

Answer:  Acid Test

Can you take a video or send me an image? [email protected]

Answer:  Making Copper

You can use paper towels to catch the solid bits then throw them in the trash. The steel wool is just for additional clean up. You're making such a small amount that it's ok to discard.

Answer:  Plasma Grape

It takes a little patience to find that "sweet spot" in your microwave that will make this experiment work. You'll want to try changing the height as well as you hunt around for the right spot. Cherry tomatoes work well also - make sure there's a little skin still connecting the two halves!

Answer:  Hydraulic Pneumatic Earth Mover

Send it to me at [email protected] and I'll get it posted for you! (I am sur eyou can understand that we don't want folks just posting any pictures they want without having someone make sure it's ok first, due to the nature of our audience.)

Question: from cdylanrun about the Making Copper experiment :

What if we do not have steel wool? Can we use anything else?

Question: from maryannpalko about the Plasma Grape experiment :

I the experiment several times and it didn't work. No speak, no flame. I also tried a longer time, up to a minute.

Question: from o_Asterix about the Acid Test experiment :

Hi i tested a rock, but it somehow started to give out a color stain when i dried it i tried other liquids, but only vinigar made it stain

Question: from smrogers about the Hydraulic Pneumatic Earth Mover experiment :

How do you post a picture?

Question: from Aurora Lipper about the Cool Milk Trick experiment :

Dairy works best for this experiment :)

Question: from stillerholman about the Cool Milk Trick experiment :

can you use non-dairy milk?

Question: from bac051201 about the Special Science Teleclass: Black Holes experiment :

I used a basketball and a football

Question: from marie_cortez about the Can a Battery Be Used to Store Energy? experiment :

Hi there. I am asking my son to document his experiments by listing the usual: - Question - Hypothesis - Materials - Procedure - Results - Conclusion Can you tell me how this experiment answers the question - Can a battery be used to store energy?

Question: from ksls185 about the Conversion Charts experiment :

Do you have a conversion chart for Elemental Science biology for the Grammar stage? TOC: http://d3r1z7wkgqhj9d.cloudfront.net/BGS%20sample.pdf Thanks!

Question: from robertdangelo about the Terraqua Column: How does water affect land and animals? experiment :

Hi Aurora, it's Andie. I have built three terraqua columns -- salt water, control and a calcium chloride one. I learned that calcium chloride is extremely dangerous for plants. When I told my father how much calcium chloride I put in the water, he told me it was too much (he double checked this with math). However, even though the plant inside the terraqua column should be dying, it is actually growing!! Also, a different weed and grass are both growing in the calcium chloride column. Please explain this. Thanks, Andie

Question: from kathmacgall about the Recent Astronomical Events experiment :

Wow! But how did they get the close up of the comet fragments when they were flying by in the beginning of the video? and why is Jupiter spinning so slowly while the comet fragment are going really fast?

Question: from bac051201 about the Quantum Mechanics: Double Slit Experiment experiment :

what would happen if there were 3 or 4 slits what if there were an immense amount how would it change

Question: from Aurora Lipper about the Terraqua Column: How does water affect land and animals? experiment :

Hi Andie! Anything that's dissolved in the water should be wicked up along with it. Give it a test run and see what happens :)

Question: from robertdangelo about the Terraqua Column: How does water affect land and animals? experiment :

Hi Aurora, it's Andie! I crafted two terraqua columns; the water in one of them being salt water. I have a question though -- will salt water travel up a wick AS salt water, or will the salt be left behind and only water goes through? Thanks, Andie

Question: from allisonbwillis about the Shopping List for Unit 1 experiment :

I have some small boat rocker switches from a eudax kit. Will these work for the hovercraft? Also, can I solder wires to 9V battery instead of purchasing the battery clip? How does RPM of motors in hovercraft project affect its success? Thanks!

Answer:  Steamboats

I think it was 3/8" ID.

Answer:  Recent Astronomical Events

That's a real video... cool isn't it?

Question: from jamallwh about the Steamboats experiment :

What is the diameter of the tubing in the video?

Question: from kathmacgall about the Recent Astronomical Events experiment :

Is the above video of jupiter real or computer graphic imaging? Was the video of the suns corona on an earth based telescope or on a satellite? If the telescope was earth based how we're they able to film the sun for several days strait with out the sun setting? And if it was on a satellite how did the satellite maintain a steady shot while it was flying through space? what was the name of the telescope/satellite?

Question: from bac051201 about the Basic Fundamentals experiment :

oops. i meant AA.

Question: from bac051201 about the Basic Fundamentals experiment :

I have seen a similar reaction, however, you are supposed to place 3 AAA batteries in water for an hour and you will supposedly be able to light the water on fire. is this the same reaction?

Question: from Aurora Lipper about the Good Old Telephone experiment :

Good suggestion!

Question: from bac051201 about the Good Old Telephone experiment :

is fishing line a possibility

Question: from Aurora Lipper about the Aurora's LEGO Robots experiment :

The original RCX firmware was on a CD-ROM. I am not sure if it's available for download anywhere or if you can still purchase a disk. Have you contacted LEGO?

Question: from jamallwh about the Aurora's LEGO Robots experiment :

Do you remember how to download the firmware?

Answer:  Build and Fly a Real Alpha Rocket

Unfortunately, no - the rocket is something you have to purchase separately. Not everyone is able to launch rockets in their area, it's something you have to get special permission for.

Question: from Aurora Lipper about the Aurora's LEGO Robots experiment :

The command to upload is nqc -firmware firm0332.lgo from here: https://pbrick.info/rcx-firmware/ Does this help?

Question: from Aurora Lipper about the Drop Rocket with Launcher experiment :

It all depends on the launch angle! Give it a try and report your results :)

Question: from jamallwh about the Aurora's LEGO Robots experiment :

Can You teach me how to download The rcx firmware?

Question: from jamallwh about the Build and Fly a Real Alpha Rocket experiment :

Does the diamond program come with this kit?

Question: from heather_steed about the Drop Rocket with Launcher experiment :

How far does this rocket fly

Answer:  Aurora's LEGO Robots

I wish I had taken a video of how I created these back then (I think it was about 20 years ago!) I am sorry I don't have instructions to share with you... maybe you can figure out something from the photos?

Question: from jamallwh about the Aurora's LEGO Robots experiment :

can you please tell me how to make the 12 legged robot out of Legos

Question: from Aurora Lipper about the Speed and Velocity experiment :

Thanks for the update!

Question: from Ramalogos about the Speed and Velocity experiment :

Every thing is working fine now. Don't know what happened.

Question: from Ramalogos about the Speed and Velocity experiment :

A little problem...When I try to go back a little to hear you or see what you wrote, it jumps way forward, then I have to start all over again just to get to the part I need to hear/see again.

Question: from Aurora Lipper about the Calorimeter experiment :

T is the temperature and delta (the triangle symbol) T is the change in temperature.

Question: from Aurora Lipper about the Terraqua Column: How does water affect land and animals? experiment :

You want to be sure plenty of light gets through, so clear would be best! It would be a great bonus experiment to try a clear one and a green one to see what differences you note.

Question: from 5hikingup about the Terraqua Column: How does water affect land and animals? experiment :

Will using a sprite bottle (meaning that the plastic is green and not clear) make a big difference other than not being able to see as well?

Question: from Aurora Lipper about the Water experiment :

You can change one variable at a time to see which one helps. What happens if you wait less time? Does that make a difference? How about adding less salt? Be sure to report back to let us know how it goes!

Question: from bac051201 about the Calorimeter experiment :

why did you use capital t throughout the video? I thought that meant temperature. or did you mean the change in temperature, not time?

Question: from Aurora Lipper about the Aurora's LEGO Robots experiment :

Sure! You'll need to start with the fundamentals if you've not had circuitry lessons, those are here: https://www.sciencelearningspace.com/study-units/unit-10-electricity/lesson-1-circuits-components/ and then you can move on to our robotics lessons here: https://www.sciencelearningspace.com/study-units/unit-10-electricity/lesson-2-robotics/

Question: from jamallwh about the Aurora's LEGO Robots experiment :

Can you please tell me how to make the 12 legged robot with two motors?

Question: from amberrnelsen about the Water experiment :

Our jar of water keeps freezing before we take it out. Do you know why it could be freezing instead of supercooling? We've tried it a couple times but each time the water is already freezing into crystals before we go to take it out.

Question: from frauritsema about the Basic Circuits experiment :

Thank you for your help!