Category: Science Units


The biggest crystals in the world

I’ve included a picture with ED’s tiny hand. Now want to see something astounding? Check out this website: In a cave in Mexico where the temperatures soar to 50 Celsius/122 Fahrenheit, there are gypsum crystals that make a grown man look like ED’s small fingernails! You can also check out the National Geographic website: I found even the story of how they entered the cave (without perishing) and...

Science Experiment: Transparent, Translucent or Opaque 2

Science Experiment: Transparent, Translucent or Opaque

I gathered a number of items from around the houseand put them all into a ziploc bag with a flashlight. Thenbefore letting the kids sort, I made sure they saw examplesand understood the difference between something thatwas transparent: you can see obects clearly through and light passes throughtranslucent: you cannot clearly see objects, but light passes throughopaque: light does not pass through I was surprised by a number of objects...

Food Groups Sorting 0

Food Groups Sorting

This activity would be easy to create by clippingfood items from an advertisement. I got mine on saleat some point. There’s also a free file folder game at kids can sort items into grains, fruit, vegies,milk and meat. Anyway, here is DD sorting foods into the variousfood groups. PS — When I was talking to my hubby about the“food pyramid” he said, “Oh no, that’s outdated.”  HappilyI could say that...

Science Center Monday — Sink or Float Activities 2

Science Center Monday — Sink or Float Activities

I have lots of science experiments that we didn’tget to this past month. Since we’re going on toother units, I didn’t want to do science experimentsdaily. Instead, I have decided to set up a new sciencecenter every Monday. That gives me time over theweekend to gather the materials I need and to getthings set up. On Thursdays, I plan to set up an “old” experimentthat we’ve done already out on...

Sink or Float Experiment Activities (cont.) 2

Sink or Float Experiment Activities (cont.)

Part III: Float a Penny Test how many pennies can be placed on an index cardbefore it sinks. Do the same with a popsicle stick. See how many rocks/pennies can be placed on a pieceof bark before it sinks or tips over. Part IV: Float AND SinkTry to make the following items float. Then try to makethat same object sink. Do not place anything on it. Try: aluminium foilclaya plastic...

Camouflage Animals 0

Camouflage Animals

The kids did this quick camouflage activity (from Take itTo Your Seat Science Centers, Grade 1-2). We alsodid an online game trying to find the camouflaged animals.Find the frog, ibex, snakes, fox, insects, turtles and more.The kids played that for a little bit, but we also just enjoyedlooking at images on the computer such as this websiteabout animals that change colors: Please like & share:


Experiment 13: Red Cabbage pH Indicator, Acid-Base Tests

This month we’re doing lots of science experiments. We also have a friend with us for the remainder of the school holidays (end of January for public school kids), so the kids have been having long, imaginative play sessions most days. It doesn’t leave me with too much more to talk about on the home-schooling front. Life in general though is full to overflowing! Isn’t that the case for most...


Experiment 13: Red Cabbage Acid-Base Tests

Yesterday we prepared our red-cabbage pH indicator. We took a red cabbage, sliced it and placed it into a pot of boiling water. The heat was turned off and we let it sit for several hours. Then we drained out the cabbage and put the cabbage juice into the fridge until we were ready to try our experiment Please like & share:


Experiment 13: Red Cabbage Indicator

Here’s the set-up of our experiment. We don’t have any test tubes, so we used small plastic cups. I also recommend having a pH indicator color chart ((I got mine from page 13 at theĀ  Surfing Scientist) as the kids really were excited to examine the chart to see whether it was an acid or a base and to decide how strong it was compared some of the other things...

Experiment 12: Make your own motor 0

Experiment 12: Make your own motor

This simple experiment is courtesy of a goodfriend of ours (thanks Mr. M!). All you needis a very strong (earth) magnet, a copper wireand a battery. The wire doesn’t need to touchthe magnet at the bottom, it just needs to beclose. The wire will spin very quickly aroundthe battery (and will get quite warm to thetouch, which also fascinated the kids). The kids thought it was interesting that ifthey flipped...

Experiment 10: The Volcano 0

Experiment 10: The Volcano

We actually do this experiment fairly frequently. Wefirst did this last January. Then we made volcanoes againfor our Natural Disasters unit (when we studied hurricanes,volcanoes, tornadoes, tsunamis and things like that). Wehad the perfect opportunity to do this experiment againalong with the Bubble Bombs when a friend was over fora play this afternoon. I’m sure you know how, but if not: A few days ago, we made the volcano from...

Experiment 11: The Bubble Bomb 0

Experiment 11: The Bubble Bomb

The kids had a lot of fun with this experimentas well. 1) Add vinegar to the bottom of a ziploc bag.Ours happened to be red because of the volcanobut plain vinegar is fine.2) Place baking soda into a tissue, wrap it upand hold it near the top while sealing the bag.3) Mix the baking soda and vinegar, drop andrun.4) The bag will POP much to the delight ofthe kids! Please...

Experiment 8: Fireworks in Milk (Investigating Surface Tension) 0

Experiment 8: Fireworks in Milk (Investigating Surface Tension)

Today’s experiments (8 & 9) both investigated surfacetension. In this milk experiment, we watched as dish washingsoap broke the surface tension of the milk and sent dyeracing away. So, here’s what we did:1) Pour a small pitcher of milk onto a plate2) Place 1 drop of each color — red, yellow, blue and green3) Dip a Q-tip into dish washing soap 4) Place the Q-tip gently in the center of...