Kategori: English

For the experiment you need:

• bicarbonate of soda
• food vinegar
• a teaspoon
• for measuring liquids: a syringe or decilitre measure
• a transparent jar or drinking glass
• an empty balloon
• an empty bottle (0.5 l)
• a funnel (you can also make a funnel out of baking paper, for example)

Instructions

• First, observe the reaction of the bicarbonate mixed with the vinegar.
  Put two teaspoons of bicarbonate in the jar. Then measure out 10 ml of vinegar into the syringe. Squirt the vinegar over the bicarbonate and observe: what do you see? What do you hear? How would you describe your observations?
• For the following, measure out 30 ml of vinegar into the bottle. Then put five teaspoons of bicarbonate into the balloon. Then thread the opening of the balloon over the opening of the bottle. Hold the balloon up so that the bicarbonate flows into the bottle. What observations can you make?
• Think together about why the balloon is growing. How could the balloon be made even bigger?
• Photograph and film the different stages of the experiment with the child. Think about which parts of the experiment are important to present. How should they be presented so that the reader gets as clear a picture as possible of what has been done?

To support the adult:

• Encourage the child to describe their observations at each stage. Observations can be documented, for example, by drawing, recording comments, photographing and filming.

The balloon grows because the bicarbonate and the vinegar create a reaction that forms gas. The gas formed is carbon dioxide.

It can be fun to have a countdown to the summer or the spring party and see how it’s getting closer. Or to a disco, to a parent-meeting, or whatever you make up.
Gives some math practice in counting down, then on the day’s note you can have something else you want to bring up. The example below has one movement challenge per day
From @mitt_digiloga_classroom (Instagram)

If you want to do it digitally, there is a free app ”Pixmas Countdown” where you can make calendars on your own with a photo and text for each day. You can also choose which day you want it to open for, whether you want it Monday-Friday, or just one day a week…

Jump and measure how far you jump on different surfaces using
different jumping methods.

What you need

• Data sheet
• Pencil
• Tape measure or other measuring tool
• Partner

What to do

1. Find an open surface to do your jumping. (Use surfaces like cement, dirt
   and wood.)
2. Make a starting line.
3. Estimate how far you think you can jump.
4. Jump as far as you can from the starting line.
5. Measure the length of this jump and record it on the data chart.
6. Continue to jump, but use different jumping styles (standing, from a squat and on one foot) on the different surfaces.
7. Measure the length of each jump using different jumping styles and record on the data chart.

What to ask

• How far do you think you can jump?
• Which jumping style do you think will work the best? Why?
• How did your estimates compare with your actual results?

Datasheet is included here: Jump Like a Frog (PDF, 416 kB)

Thanks to the Children’s Museum of Houston for the idea.

Purpose:
Designing your own game takes a lot of creative problem solving to make it work and provides a fun way to use everyday materials to create something original. Children will design a tabletop maze using materials from the household recycling bin. The maze will be grounds for a ping pong ball race. The movement of the ping pong balls will be powered by air blown through straws.

Getting Started:

Supplies needed:

• Drinking straws (enough for each participant to have one)
• Two ping pong balls
• Large base for your maze to be built on (i.e., a large flat piece of cardboard or foam)
• Materials to repurpose such as coffee sleeves, cardboard, cereal boxes, or paper tubes
• Paper-backed tape such as masking tape or painter’s tape
• Scissors or x-acto knife
• Optional: aluminum foil or pipe cleaners

Players: can be done individually, with a partner, or with a small team Time needed: 15+ minutes

Instructions:

1. It’s time to start planning the maze. Will you sketch it out in advance or dive right in and start adding materials to your base? That’s up to you and your design team.

• Make sure you choose a start and a finish. The start and finish must be on the base of your maze.
• Use as many different materials as you can to create as many twists, turns, and obstacles as you can in your ping pong ball maze.
• Be sure to make your paths wide enough for a ping pong ball to travel through.
• There is no height limit for the paths in your maze.

2. Test the maze. Push your ball along by blowing air through a straw to make the ball move.
3. Blow your ball from start to finish.

Time yourself or one another as you race against the clock to move your ball from start to finish.

1. Cut a 15 x 60 cm piece of cardboard.
2. Cut four 15 x 15 cm pieces of different patterned paper, and glue these four pieces to the larger piece of cardboard.
3. Make a picture of the sun, a picture of a cloud, a picture of a raindrop and a picture of a snowflake.
4. Glue these four images onto four different pieces of patterned paper.
5. Cut an arrow out of white cardboard and glue it to the clothespin.
6. Put an arrow to show what the weather is like outside.

Combine shapes to draw a self-portrait. Start with the circle for the head. Add rectangles of different sizes for the neck, body, arms and legs.

Then add small shapes for your facial features.

Put labels next to each shape.

The idea is taken from iPads’ tips documentation.

Working with sequencing is an important part of kindergarten and preschool mathematics. These two worksheets I found work with this in a visual way.

Just print, cut out the suggestions so they are loose and fold the correct solution back and the material is ready.

Vad kommer sen? (PDF, 6.81MB)

Vad kommer sen? 2 (PDF, 9,46 MB)

Today’s idea is taken from STEAMPoweredFamily.com:

All you need is found in this PDF: Christmas Math Puzzles STEAMPoweredFamily(PDF, 1,33 MB)

Try to decide how to paint a bathroom wall using dice.

Starting with the first square, roll a dice to colour according to the table at the bottom of the page.

Continue in this way until all squares are coloured.

Compare each other’s results when you are finished.

From this you can think about probability.

To print: Måla badrummet med tärningar (PDF, 49kB)

WHAT IS AN AIR VORTEX CANNON?

You generally can’t see an air vortex unless there’s a good deal of particles in the air such as smoke. However, you can see the effects of it by making this fun air cannon! An air vortex cannon releases doughnut-shaped air vortices — similar to smoke rings but larger, stronger and invisible. The vortices are able to ruffle hair, disturb papers or blow out candles after travelling a short distance.

YOU WILL NEED:

• Plastic Bottle
• Balloon
• Paint or Stickers (optional)

HOW TO MAKE AN AIR CANNON

STEP 1: First, you want to cut off the ends of the bottle and balloon.

STEP 2: Decorate the bottle if desired! This step can be done before or after the next step depending on what you want to do to it.

STEP 3: Then you will want to stretch the balloon over the end of the bottle.

Done! You’ve made a super simple awesome air vortex cannon to blast out air.

HOW TO USE YOUR AIR CANNON

By using the end of the bottle with the balloon, to essentially suck air back, you can then aim and shoot that air out the front of the bottle. You can even knock over dominoes with that force of air! Amazing! Simply stretch out the end of the balloon and let it go.

What can you knock over with your own air vortex cannon? You can try making paper targets, setting up paper towel tubes, cups, and more! Ready aim fire!

HOW DOES AN AIR CANNON WORK?

This air vortex cannon may be super simple to make but it also includes some great science to learn too! If you really want to keep kiddos engaged with science, make it fun and hands-on!

As mentioned earlier, we can’t see air but we can see the effects of air moving through trees, the beach ball being blown across the lawn and even the empty trash can as it blows out of the driveway and down the street. You can also feel air when it’s windy! Air is made up of molecules (oxygen, nitrogen, and carbon dioxide) even if you can’t see them though on a windy day, you can sure feel them!

Why does the air move? Generally, it’s because of air pressure caused by temperature changes and moves from high pressure to low pressure. This is when we see storms pop up, but we can also see it on an ordinary day too with a soft breeze.

Although the temperature is a big part of the pressure change, you can also make that pressure change yourself with this cool air cannon project! The air blaster creates a burst of air that shoots out of the hole.  Although you can’t see it, the air actually forms a donut shape. The difference in air pressure from the fast-moving air through the opening creates the spinning vortex that is stable enough to travel through the air and knock over a domino!