I ♥ SCIENCE: junio 2012

lunes, 25 de junio de 2012

HOW DO PLANTS GROW? WHAT IS PHOTOSYNTHESIS?

HOW DO PLANTS GROW?

Photosynthesis - The cycle of plants and how they make energy! The sun(light energy), water, minerals and carbon dioxide are all absorbed by the plant. The plant then uses them to make glucose/sugar, which is the energy/food for the plant. Oxygen is also produced by the plant in this cycle, which is then let off into the air! Have you noticed how clean and pure the air feels when there are plants around? They are filling the air with oxygen!

domingo, 10 de junio de 2012

POLLINATION AND FERTILIZATION

How do flowering plants reproduce?

Let's find out what pollination and fertilization are.

Let's take a look at the parts of a flower to answer the questions. Can you name them all ?

What is pollination?

It is the process of carrying pollen inside the flower so new seeds can be made. In other words, it is the process of movement of pollen.

Who is in charge of pollination? Any idea?

Point to the humming bird.
Point to the bee.
Point to the butterflies.
They all help the flowers's pollination.

The Pollination Process

The pollination process involves the transfer of pollen, from the male part of a plant (in flowers, this is the ‘stamen’) to the female part of the plant (the 'carpel').

Pollen is made in a part called the anther. The eggs are inside the flower in part called the ovaries.

The Plant Pollination Process

The following points correspond to the diagram opposite.

1. Pollen grains land on the sticky stigma.

2. A pollen tube grows down the style, followed by male sperm nuclei.

3. The sperm nuclei fuse with the female ovules.

4. The ovules develop into seed, and the ovary develops into fruit.

Fertilization

It is the process when pollen meets the ovules to make new seeds.

Pollen + ovule = fertilization

SCIENTISTS DOING RESEARCH

It's time to do research (further investigation). Get in groups of four anwer the following questions after watching the videos.

Life Cycle of a Flowering Plant

1.Are female and male parts of the flower separed?
2.How do plants attract insects and birds?
3.Where are ovules made?
4.Where is pollen made?
5.When does fertilization occur?

More science videos on Pollination at NeoK12.com

Plant Reproduction: Methods of Pollination

6. Can flowers selfpollinate?
Name a flower that can selfpollinate.

More science games & videos on Pollination at NeoK12.com

For more information:

http://www.neok12.com/Pollination.htm

CAN YOU POLLINATE A FLOWERING PLANT?

FUNNY, ISN'T IT?

sábado, 2 de junio de 2012

RECYCLING EXPERIMENTS FOR 2012 ICTYS

RECONCILIATION WITH THE ENVIRONMENT

DEAR GREEN LEADERS,

HERE IS A LIST OF AMAZING EXPERIMENTS THAT YOU CAN DO FOR THE ICTYS PROJECT. GET IN GROUPS OF 3 TO 4 PEOPLE. THEN, CHOOSE ANY OF THEM.

EXPERIMENT 1: RECYCLING GREY WATER: Can plants tolerate it?