Properties of Matter

Inside the microwave there's a quickly-changing electric field. Water molecules are slightly charged at both ends, and want to...

Enrichment Activity 5-11 11-14

Water overcomes gravity and rises up the arches as it is attracted to the cellulose in them and to the water already absorbed...

Enrichment Activity 5-11 11-14

Though the paperclip should be heavy enough to sink, the surface tension of the water holds it up. When the washing-up liquid...

Enrichment Activity 5-11 11-14

When you blow directly into the bag, the only air flowing into the bag is from your lungs. When you blow from a short distance...

Enrichment Activity 5-11 11-14

One piece of foil will sink and the other will float. The piece of foil scrunched above water traps some of the air, which...

Enrichment Activity 5-11 11-14

As you put your finger in the water, the water tries to push up and float your finger. Because of this the finger pushes down...

Enrichment Activity 5-11 11-14

Once the water begins to flow through the straw, the rest of the water follows as it's pulled through.

Enrichment Activity 5-11 11-14

The petals help the bubble to become big by holding the soapy water in the petals so the bubble doesn't stretch too thin and...

Enrichment Activity 5-11 11-14

The bottle is already full of air, so it's very hard to blow more air into it. When you do blow into the bottle the air comes...

Enrichment Activity 5-11 11-14

Tapping the side of the box makes the sand particles move over each other, making the heavy object fall over.

Enrichment Activity 5-11 11-14

Food colouring and oil don't mix, and as the two separate the food colouring sinks into the water, leaving trails of colours.

Enrichment Activity 5-11 11-14

Adding fresh water dilutes the salt water and reduces the amount the water lifts the egg.

Enrichment Activity 5-11 11-14