Have a Break!

Tuesday, March 03, 2009

Backswimmer

Backswimmer




Backswimmer

These bugs swim upside down on or near the surface of the water, with their legs up!
What they look like:
Backswimmers can be recognised by their curved back, a broad 'keel' on the abdomen, large eyes that occupy most of the head, and long, hairy hind legs for swimming.

Size:
Up to 11 mm long.

Where they live:

Backswimmers are found throughout Australia in still and slow-flowing ponds, rice fields, canals and rivers. They spend most of their time in water but can fly from pond to pond.

What they eat:

Backswimmers eat smaller aquatic animals, including bloodworms and aquatic larvae. They are predators (stalking other insects), with sucking mouthparts.

Monday, March 02, 2009

Giant Water Bug

Bryan took the effort to send this article about Giant Water Bug! Thank You Bryan!





GIANT WATER BUG
The Giant Water Bug is one of the largest insects in the U.S. and Canada. Giant water bugs are approximately 1.5 inches (3.8 cm) in length. Some species grow as long as 4 inches (10 cm). Because it often turns up under street lights and porch lights, it is also one of the most asked about insects. It is commonly mistaken for a beetle or even a cockroach. Alternate names include toe biter because they can deliver a nasty bite, and electric light bug because they are attracted to lights.

Habitat
Clear, freshwater streams and ponds, preferring those with aquatic vegetation. Giant Water Bugs like slowly moving water, especially where there is emergent vegetation such as cattails. They usually grab hold of a plant near the surface, and stick their short breathing tube out of the water to allow them to breath while waiting for prey. With their powerful front legs they are able to grab other bugs and prey as big as small fish, frogs and salamanders. They pierce their prey with their sharp beak and secrete enzymes that dissolve the body tissues, thus allowing them to suck up the resulting liquid.

Life Span
One year or longer

Diet

Larvae eat small aquatic invertebrates, while adults prey on any small animal they can handle, including insects and other aquatic invertebrates. They also hunt vertebrates such as tadpoles, salamanders and small fish. Grasping and holding prey with their powerful forelegs, giant water bugs thrust their sucking mouthparts into their prey. Many Giant Water Bugs are kept in zoos, where they are fed crickets

Ambush Hunters

Giant water bugs are ambush hunters, lying motionless and waiting for their prey. Predators of giant water bugs include birds, fish and other aquatic predators. When sitting motionless, giant water bugs resemble dead leaves. This allows them to hide from both potential prey and possible predators. However, their best defense is to escape and hide when alarmed.
Adult giant water bugs capture larger prey species by using their clawed front feet and chemicals which are injected into the body of the prey. The enzymes turn the prey’s insides into liquid, which the giant water bug can suck up.

Identifying Characteristics

The Giant Water Bug has piercing, sucking mouth parts, and a short, pointed beak on the underside of the head. The other distinguishing characteristic is the fact that the wings overlap at the hind end of the abdomen, forming an X like pattern. Other than that, the sheer size of the insect and the unusual shape of the front legs help identify it.

The Giant Water Bug is found throughout the northern United States and Canada, wherever there is standing or gently running water. Giant Water Bugs are active all year, but are most commonly seen in the late summer and early fall. At this time of year the adults are leaving the shallow ponds at night to look for deeper bodies of water where they can remain active throughout the winter under the ice. They are often attracted to lights such as porch lights, where people find them the following morning.

Although not really dangerous, the Giant Water Bug can give one a nasty bite. One person described the bite as very painful, causing the finger and whole hand to swell up dramatically, to the point where they lost all use of the hand,and remaining thus for about two weeks. If you are going to handle this insect, it should be done with care.

Wednesday, February 11, 2009

Monday, February 09, 2009

The Truth About Your Heart

The Truth About Your Heart

Text by Sarah Ives
Illustration: heart with dumbbell and "Valentine's Special: The Truth About Your Heart"

An average human heart "pumps iron" by beating 100,000 times a day.

Illustration by Sharon Davis


This Valentine's Day, millions of people will exchange heart-shaped gifts of all kinds, from candy to cards. But did you know that the human heart does not actually look like the typical valentine shape?

National Geographic Kids spoke with heart specialist Robert DiBianco to learn more about this important organ.

According to Dr. DiBianco, the human heart is about the size of a fist.

"Because [the heart] is a muscle with lots of blood supplied to it, it looks red like meat," he explained. "In people who are overweight ... the heart looks yellow because it is covered with yellow fat."

In the United States children are taught to place their hands over their hearts when pledging allegiance to the flag. Most people have heard that the heart is on the left side of the chest. In reality, the heart is in the middle of the chest, tucked snugly between the two lungs.

But what does the heart actually do?

DiBianco explained that the heart is a pump that pushes blood throughout the body. The heart moves blood by expanding and contracting (getting bigger and smaller).

"Each living part of the body needs blood to live, and that's why it's important for the blood to go to different parts of the body," DiBianco said.

When you're exercising, it takes your blood about ten seconds to get from your heart to your big toe and back. In fact, a kid's heart has to push blood through about 60,000 miles (96,560 kilometers) of blood vessels—that's long enough to circle the Earth two and a half times!

All that pumping takes a lot of effort. To push blood, an average heart beats a hundred thousand times a day. That means that in a lifetime, the average human heart will beat more than two and a half billion times.

Because the heart is so important, the American Heart Association reminds people that they need to treat their hearts with care. Exercise and healthful foods can help the heart do its job.

This Valentine's Day, heart-shaped gifts will be everywhere. Maybe that's why February is also American Heart Month!

Taken from http://kids.nationalgeographic.com/Stories/SpaceScience/Truthaboutyourheart

Friday, January 16, 2009

Down with Fever

Not feeling too good today. Fever and Sore Throat.

Here are the photos...














Wednesday, January 14, 2009

Updates!

Hmmm~ Updates!

The visualizer in our class is working! :P Yay! Finally, we can get to use the projector!

I've tagged most of you and updated the Class of 6D 2009. If there are more pupils out there with blogs, please tag it on the tagboard and I will link you up to this class blog.

I've added a new gadget where people can click whether the blog post is funny, interesting or cool.

I might be adding music in too! So let me know what type of music you like! I'll try to fix it. I would also like to link some educational games too...

:)

Tuesday, January 13, 2009

Class Decorations!

Some Photos of Students who stayed back to help with the class decors!

THANK U!

Miss Yan














Thursday, January 08, 2009

A New Beginning ~ A New Year~


Welcome 2009!

There goes 2008 and a new year awaits us! Though some of you might be stressed up with PSLE, don't fret! We will be learning together as a class! Our motto still stands as 'Persevere to Succeed!' and we NEVER EVER GIVE UP in anything.

I'm excited teaching Primary 6D, seeing most of the familiar faces I've gotten used to teaching in 2008! New faces too! For the pupils who are new to me, HelloooOOo~~ and Welcome!

Looking forward to having an exciting year with all of the pupils in 6D!

Miss Yan

Saturday, January 03, 2009

Thursday, December 18, 2008

Hmmm

I've added links to pupils with blogs. Do tag if you need me to link you to my blog.

Miss Yan