Artificial Intelligence: A machine is said to have artificial intelligence if it can interpret data, potentially learn from the data, and use that knowledge to adapt and achieve specific goals.
For this Mini Spark, have fun exploring Artificial Intelligence (AI) in the following ways…
After spending some time at the playground, soccer field, or in the backyard, it can be easy to see the dirt on our hands.
What you can’t see are the invisible-to-your-eye germs that accumulate on your hands throughout the day. To see the effect those germs have, give this this eye-opening experiment a try.
HAND HYGIENE EXPERIMENT
What you’ll need:
- Three slices of bread (the kind from a bakery or homemade works best — the fewer preservatives the better)
- Three resealable bags
- Label each of the three bags:
- Place one slice of bread in the “control” bag without touching it. You can use clean tongs, or turn the resealable bag inside out and use it like a glove to get the slice inside. Seal the bag.
- Remove a second slice of bread and have your child touch the bread with her unwashed hands. Place the bread in the bag and seal it.
- Have your child wash her hands with soap and water.
- Take a third slice of bread and have your child touch the bread with her freshly-washed hands. Place the bread in the bag and seal it.
- Take all three sealed bags and put them in a cool, dry place.
- Look at the bread daily and write down your observations, but do not take the bread out of the bags. In a few days, mold should start to appear. What slice of bread gets moldy first? Which grows the most mold? Which grows the least? If mold starts to appear, have your child take a ruler and measure it and record your observations. You can even draw a picture of the bread each day, or keep a photo diary by taking pictures of the bread each day to watch the changes over time.
Learning about hand hygiene
When Should I Wash?
“You should wash your hands before, during, and after preparing food. Also wash before you eat, after using the restroom, after blowing your nose, after touching animals, and any time your hands appear dirty,” says Terri Stillwell, MD, Associate Hospital Epidemiologist at Mott Children’s Hospital, where she is responsible carrying out various roles for infection control and prevention. Dirty hands can spread all kinds of germs from the common cold to food poisoning to more serious illnesses.
How Do I Wash?
Most of us do not properly wash our hands. The Centers for Disease and Prevention (CDC) recommends a multistep process:
- Wet your hands with clean, running water (warm or cold), turn off the tap, and apply soap.
- Lather your hands by rubbing them together with the soap. Be sure to lather the backs of your hands, between your fingers, and under your nails.
- Scrub your hands for at least 20 seconds. Need a timer? Hum the “Happy Birthday” song from beginning to end twice.
- Rinse your hands well under clean, running water.
- Dry your hands using a clean towel or air dry them.
“The scrubbing part of washing your hands is important. It’s the combination of the friction of rubbing your hands together along with the soap that really gets them clean. Take your time and sing or hum the Happy Birthday song twice,” says Dr. Stillwell. If soap and water are not available, Dr. Stillwell recommends using an alcohol-based hand sanitizer. “Make sure it’s at least 60 percent alcohol. Rub the sanitizer all over your hands just like if you were scrubbing your hands with soap and water. Then allow the sanitizer to dry.”
The oldest glue in the world is over 8,000 years old and comes from a cave near the Dead Sea. Today, we have enough types of tape and glue to build and repair almost anything. But what gives glue and tape their stickiness? And is one stronger than the other? Elizabeth Cox explores the world of adhesives.
Pick an activity or two and share what you have learned.
- This is a vocabulary rich video. Create a mini dictionary to go along with the video.
- Write a short speech from the point of view of tape or glue explaining why it is better than the other.
- Who invented Scotch Tape? Do some research to answer this question.
- Why would you want to use duct tape to hold a chain of bowling balls instead of glue?
- Make a list of all of the the types of tapes and glues that you know about. Don’t forget those made by nature.
How Glass is Made
This process is interesting and a more interesting question is how did humans begin this process in the first place? Watch a video about glass from Mystery Doug and take a few notes as you watch.
What materials are used to make glass?
Glass is made from a mixture of sand, lime and soda. When these ingredients are heated together, they form a liquid glass. This liquid glass is made into sheets by cooling and flattening. To make objects like vases, craftsmen blow into a glob of liquid glass with the help of a long tube.
Plate Glass made by Rolling:
- Sand, lime and soda are heated together in a furnace to make liquid glass. Rollers are used to flatten glass into sheets, which are first cooled, then cut.
Plate Glass made by Floating:
- Liquid glass from a furnace is floated and slowly cooled on the surface of liquid tin. After the glass has cooled down, it is cut into pieces.
- Vases, ornaments and other intricate glass objects are made by a glass-blower. The glass-blower uses a metal blowpipe which has a glob of hot glass at the end of it. A glass blower then blows the soft glass into shape.
Glass has many uses:
- Glasses, window panes, mirrors are few of the many things that are made from glass. Glass is not only useful, but can look beautiful too. Windows made of stained glass are works of art.
- Other glass-making ingredients can include alumina, lead oxide, salt-petre and zinc oxide which are used to make different types of glass. In the production of plate glass, waste glass from a previous melt is also added, making up 5 to 40 percent of the mixture. Melting takes place in giant furnaces, from where molten glass is floated or rolled into sheets.
Watch this animated step video about glass from Mocomi
Draw a picture timeline/use pic collage showing several of the different glass making process. Include at least 3 science words in your visual.