Educator How-To: Making the Moon out of Cheese (and Crackers!)

After months of renovation, the Burke Baker Planetarium at the Houston Museum of Natural Science will re-open March 11 with the best picture of the universe in the world! The Evans and Sutherland Digistar 5 digital projection system boasts the first True 8K image on the planet, with twice the resolution as an IMAX theater. The powerful digital software can zoom audiences to distant stars to see the universe from infinite perspectives, not just from the surface of the Earth. And with a tilted, seamless dome overhead and updated, comfortable seating below, the planetarium will be a must-see for Houston residents and visitors from literally anywhere.

But while it’s closed, life goes on, and without the incredible demonstration available at the planetarium to show the phases of the moon, explaining the orbit of our only satellite to kids (and keeping their attentions) can be a difficult task. So for hungry minds and bellies, we’ve got something to tide you over until the doors to the planetarium open once again.

Teach your students about the phases of the moon with this awesome Solar System snacking activity! I created this lesson plan as an alternative to the Oreo™ phases of the moon activity that we think is so clever. This science snack is a healthier alternative and will satisfy hungry students without the sugar rush. Educator How-To: Making the Moon out of Cheese (and Crackers!)

Moon worksheet

Materials:

  • Ritz™ Crackers
  • American cheese slices
  • 1.5 inch round “cookie” cutter
  • Phases of the moon chart
  • Phases of the Moon worksheet
  • Markers
  • Waxed paper
  • Plastic knives

Educator How-To: Making the Moon out of Cheese (and Crackers!)

Moon phases

Procedure:

  1. Give each child a copy of the phases of the moon chart.  Go over the different phases, and consider using our Educator How-To: We’ll See You on the Dark (and Light and Far) Side of the Moon to demonstrate the phases in an active, hands-on fashion.
  2. Distribute one slice of American cheese to each student.
  3. Instruct students to carefully use the circular cutter to cut four circles from the cheese. With careful placement, one slice of cheese will be sufficient.
  4. Using a plastic knife, students will then cut one circle of cheese in half.
  5. The second circle will be cut using the circular “cookie” cutter.  Place the cutter carefully on the circle of cheese so that a crescent-shaped piece of cheese is cut from one side.
  6. The same procedure should be used to cut an additional crescent-shaped piece from the third circle of cheese.
  7. The fourth circle will remain whole.
  8. Now you are ready to go! Distribute the Phases of the Moon worksheets and have students place a Ritz™ cracker on each “moon.”
  9. Students will now arrange the cheese on the crackers to reflect each phase of the moon.
  10. When finished, students may eat the tasty moon snack!

Halloween How-to: Make a Spooky Skeleton Out of Recycled Milk Jugs!

Halloween requires skeletons. (And so does El Dia de los Muertos, for that matter…) If you’re on a budget but like to decorate, or you’re crazy about recycling, or you’re the crafty type who loves to add custom flair to everything, or you just want to see if you can do it, we’ve got a project for you!

Using recycled gallon and half-gallon milk jugs and some other simple materials, you can make your own reusable skeleton decoration to hang in your tree or around the house for spook season. Read through this easy procedure and watch our how-to videos for a clear example. Make one or make several, depending on how much milk your family drinks…

skeleton2

This homemade decoration is almost like the real thing! Photo by: Jason Schaefer

Materials: 

A minimum of nine plastic jugs – at least three of them gallon-sized

Scissors

Hole punch

String, brads or pipe cleaners

Sharpie permanent markers or paint

Decorative bits (glitter, sequins, buttons, etc.)

Optional – High-temperature glue gun for punching holes

Procedure:

Three notes before you get started:

  • If you are making a second skeleton, you can probably use your jugs more efficiently than listed here and therefore need less.  If you are making this skeleton for the first time, I have asked you to provide 9 jugs (at least three of them being gallon-sized) so that you don’t have to work quite so hard to get a completed product.
  • The high-temperature glue gun works FABULOUSLY for punching the holes in the milk carton plastic, but I don’t recommend this method if you are a) working with younger children or are b) me because I absolutely burned myself. If you can get a volunteer in, they can sit and make the holes for the students pretty quickly.
  • If you are nervous about what you are doing, you can always sketch out your pieces with a Sharpie. Once you have them the way you want them, use rubbing alcohol to remove the Sharpie lines.
  1. Lay your hand or a template of a hand over the handle of one milk jug and trace.  Reverse the template or use your other hand for the second milk jug. Carefully cut the hands out. Save the extra bits.
  2. Repeat step one for the feet.
  3. Using a fifth and sixth jug, cut an extended oval out of jug around the handle, being as generous as you can with the oval. You can always trim it later! These will be the shoulder bones or scapulae. If you are clever, you can use the leftover bits to make your rib cage in step 9 as well.
  4. At this point, you should have two hands, two feet and two shoulder bones and a pile of left over bits.
    skeleton

    Where on the family tree would you place this skeleton? Photo by: Jason Schaefer

  5. Punch holes near the wrist portion of the hands and the ankle portion of the feet. Punch a hole in each end of the shoulder pieces.
  6. Using the leftover bits of your first six jugs, sketch out some bones. These should be basic stick shapes with lumps at each end. You will eventually need eight bones (four longer pieces for leg bones – two for each leg – and four shorter pieces for arms – two for each arm). Make them as long as possible. Once again, you can always trim them! In the example, my long leg bones crossed the jug diagonally to give them some extra length. With careful placement, I cut two long leg bones (and two knee caps) out of one of the leftover jugs.
  7. On a seventh jug, sketch out a skull (should consist of two large round eye sockets, an upside down heart or triangle for a nose and squares or ovals all lined up and touching for teeth). Use the two surfaces opposite the handle, and the jug should be upside-down. The neck of the jug will end up being the neck of your skull as well. You can add details as you see fit. It is also optional to cut the face out.
  8. Punch a hole in each side of the “neck” of your skull jug.
  9. Use your eighth jug to make a rib cage. You need to leave the neck of the jug as this will be the attachment point between the “hips” and the “ribs.”  That being said, cut out the handle of your jug so that there is a pretty big hole on one side of the jug.  This will be the front side of the rib cage. The neck and opposite side will represent the spine.
  10. To make the rib cage vaguely more accurate, cut some mostly horizontal strips out of the sides of the jug to leave the impression of ribs. The strips you cut out will become the empty spaces between the ribs. You will have to imagine that you are leaving a two inch vertical strip from the neck of the jug up the back to the bottom and down the front to the hole. This will act like the spine and the sternum. The horizontal strips you cut out should leave the two inch vertical strip intact.
  11. To make connection spots for the ribcage portion, cut two slits in the bottom of the jug on each side of the center. Then punch a hole on either side of each slit (for four holes total). Then punch two holes in the neck of the jug. If you are looking into the hole you created when you removed the handle, you will punch the one hole on the left of the neck and one hole on the right of the neck.
  12. To make hips, cut off the bottom of a ninth jug about two or three inches up. The example has a reinforced ring of plastic around the bottom and that was used to approximate the cuts. Round the corners of the jug and make the sides dip closer to the bottom of the jug.
  13. Punch holes in two opposite corners of the “hips.” 
  14. Cut a slit in the bottom of the “hip” piece and then punch two holes on either side of each slit (for four holes total). This is where you will attach your rib cage.
  15. Cut out two rounded corner squares from whatever leftover bits you have. These will be the kneecaps of your skeleton. Punch two holes in each that are opposite of each other.
  16. After you have everything cut out, you can make the parts interesting by drawing designs on all the bones in glow in the dark paint or Sharpie. Feel free to decorate your skeleton in either traditional Halloween or in the lighter and more decorative Dia de Los Muertos calacas style.
  17. Using a flat surface, align all the parts, making sure that you have the right connection holes punched out. Then connect all the parts together using the string, yarn or wire. Poke two holes in the top of the head and tie a loop that you can hang your skeleton from. From the top down, you should connect the pieces as such:
    • One shoulder piece to each side of the skull jug neck. Make sure they are facing the same way.
    • Tucking the ribs under the shoulder pieces so they stick out a bit, use the same skull jug neck holes to attach the rib cage. You will use the holes you created in the bottom of the rib cage jug to do this.
    • Connect your arm bones to each other and then to the shoulder.
    • Connect your hand to the end of the arm. Make sure they are facing the correct direction.
    • Connect the hip jug (bottom only) to the neck of the rib cage jug. You will use the four holes in the hip jug to connect to the two holes in the neck of the rib cage jug.
    • Connect the upper leg bones to the knee caps. 
    • Connect the knee caps to the lower leg bones.
    • Making sure they match, connect the legs to the holes in the side of the hip jug.
    • Connect the feet to the lower leg bones. Make sure they are facing the correct direction.

    #ChillsAtHMNS

    Educator How-to: Make an Anubis mask!

    Anubis is the Greek name for the “jackal-headed” god associated with death and the rituals of mummification in Ancient Egypt. Anubis’ color is black, symbolizing rebirth, which parallels the belief that the deceased is, in fact, reborn in the afterlife.

    anubis 1

    Ancient Egyptian cartonnage Anubis mask.

    Over time, Anubis played several roles in funerary rituals, from protector of the grave to head embalmer, and advocated for the deceased in the Weighing of the Heart ceremony. A mask, like the one pictured below, was worn by the priest performing the Opening of the Mouth ceremony and other funeral rituals.

    Anubis 2

    Opening of the Mouth Ceremony.

    Interestingly, recent genetic research suggests the Egyptian jackal, long thought to be the inspiration for the god Anubis, may not be a jackal at all, but rather an African wolf and a member of the gray wolf family. However, at present, the animal is considered of unresolved taxonomical identity and is presently classified as a golden jackal, despite genetic evidence that suggests otherwise.

    jackal

    The Egyptian jackal, or perhaps the African wolf.

    With the directions below, you can make your own Anubis mask! First, print out these Anubis Templates for the mask and ears and gather the following supplies:

    • Cardstock
    • Cardboard (you can recycle a cereal box for this purpose)
    • Crayons
    • Glue
    • Hole punch
    • Scissors
    • Stapler
    • Elastic string

    Cut out the face and ears from the template. Trace the ears onto a piece of cardstock and cut them out carefully. Color the face of Anubis any way you like, using your crayons. When finished, glue the face to the cardboard and cut it out using a pair of sharp scissors. Then use glue or a stapler to attach the ears to the top of the mask. Use the hole punch to make a hole on each side of the mask at its widest point. Finally, tie the ends of a length of elastic string to each of these holes so the mask fits snugly over your face. Now you can legitimately perform the Opening of the Mouth Ceremony yourself!

    masks

     

    Use these designs above for inspiration or invent your own. You learn more about Anubis and other Egyptian gods at the Houston Museum of Natural Science in the Hall of Ancient Egypt.

    Educator How-To: Be your own knight in shining armor with homemade chain maille

    When people think of knights, they generally think of armor, too. The plate armor most associated with knights was actually a fairly recent invention. Armor started as quilted shirts and thick leather pieces to cover arms and legs (if you were fortunate enough to afford it!).

    Chain maille was a pretty fantastic innovation for the time, but it had its drawbacks, too. It was heavy and cumbersome and only as strong as each individual link. Because the links were made of steel or iron, they rusted quite readily, and those rusty links were the proverbial “chinks in the armor.” They were points of weakness that might allow a sword point or arrow to penetrate. 

    The job of armor maintenance was given to young boys that might otherwise be underfoot. To start, the armor was placed in a barrel of sand and sealed up. The boys would then roll the barrels back and forth across the yard and the sand would scour the blood and sweat and rust off the links. Even a well-maintained chain maille shirt would need repairs quite often and the color on even the best of days would be a dull dark gray.

    Further innovations led to the plate armor that we know today, but even then, it wasn’t always so shining. Here is a suit of armor that belonged to Henry VIII. 

    Youth Ed Armor 2Youth Ed Armor 1 

     

    Beautiful? Yes. Well-crafted? Yes. Shining? Not so much.

    Don’t be fooled into thinking that body armor like this was a strictly European invention.  Most cultures that engage in warfare have some sort of armor to counteract the weapons. Some of the armor is ceremonial, but more often than not, it is clever and particular to the local environment. 

    The Maya and Aztec, for example, wore knee-length jackets of tightly-woven quilted cotton called ichcahuipilli. The jackets were soaked in salt water and then the water was allowed to evaporate. The salt left behind would crystalize between the quilted portions of the jacket, creating small, thick, sturdy plates of protection which were effective against arrows, atlatl darts, obsidian swords and batons.

    Youth Ed Armor 3

    Youth Ed Armor 4

     

    They didn’t have cotton in Micronesia, so on the islands of Kiribati, they used what they did have: coconuts. Helmets, leg coverings, shirts and chest protection were made from tightly-woven coconut fibers as protection against another natural resource: sharks (or more accurately, shark teeth). The teeth of the sharks were drilled in the roots and then attached to the base with bits from the veins of the coconut leaf or human hair. The shark-tooth swords were intended to disembowel an enemy or open a major artery so he would bleed out. Yikes!

    Want in on all this exciting armor action? You’ve got two options!

    Option 1: Bring your crew down to see Magna Carta before it leaves on August 17th.  You have three short weeks! If you want to bring a school group or day care, be sure to contact fieldtrips@hmns.org to get the school rate. You will also want to consider coming on a Friday mornings at around 11.

    Youth Ed Armor 6

    Option 2: Can’t make it to us? Then try your hand at making your own armor. Sort of.  Here’s a pretty easy chain maille bracelet you can make at home. It won’t offer you much protection but it will allow you to practice your technique before trying something a little more complicated.

    Materials:

    -Jump rings or chain maille rings (The bigger they are, the less work for you.)
    -The clasp of your choice or a piece of leather or ribbon to tie the bracelet ends together
    -2 pairs of jewelers pliers (or needle-nosed pliers if you are in a pinch)
    -A tape measure or piece of paper to measure your wrist

    Procedure:

    1. Measure how long you want your bracelet to be using a tape measure (or even a piece of paper). The standard size for women is about 7 inches and the standard size for men is about 8.?
    2. Open several of your jump rings. To open them, you DON’T want to pull them apart.  Instead you want to twist them open. If the individual rings start off as an “O” shape, you don’t want to make them into a wide-mouthed “C”. Instead, you want to slide the ends away from each other, one towards you and one away from you. Because of the way the rings are made, they naturally take that shape, so that should help you get started. If your rings lay flat when opened (rather than in a twisty shape), you will need to try again! Once you have a pile of open rings, things get a little trickier. You can keep up though. I believe in you.?

      Youth Ed Armor 7

    3. The next step is to put four closed rings on an open ring and then slide the open ring back into the closed position. Then repeat this step over and over. You will need probably 10 of these 4-in-1 sets for a 7-inch bracelet.

      Youth Ed Armor 8Youth Ed Armor 9
    4. Once you have the 4-in-1 sets made, you will need to use your pliers to separate out two rings from the four. The set should hang from your pliers as two rings, with one ring in the middle and two more rings at the bottom. You are then going to feed an open ring through the top two rings. Shift your pliers around so that you are now holding onto that open ring.?

      Youth Ed Armor 10Youth Ed Armor 11

    5. Using your other set of pliers, pick up two rings on another 4-in-1 set. Loop those two rings through the open ring (effectively creating a new 4-in-1 set) and then close the open ring. You should have created a small chain at this point. Great job!

      Youth Ed Armor 12

    6. Repeat steps 4 and 5 until you have 4 or 5 small chains. I am doing 4, but I have pretty small wrists.

      Youth Ed Armor 13

    7. Getting close to being done! You will need to link these small chains in exactly the same way you did the sets. Take two rings from the top of one small chain and put them on an open ring with two rings from the top of another small chain.
    8. Now, repeat step seven with your longer chains!
    9. Finish up by adding a single jump ring to each end. This will let you tie the two ends together, or you can add a clasp to that last ring before you close it up. You’re done!

      Youth Ed Armor 14