Monday, September 22, 2014
Thursday, May 8, 2014
Pollination
Pollen grains are tiny and usually yellow. They form on the tips of the stamens.
Pollination is the movement of pollen from the stamens to the ovary. This movement usually takes place in the same plant.
Pollination also takes place between plants of the same type.
Insect Pollination
Insects transport pollen between plants. Insects are attracted by large aromatic flowers with nectar.
Wind Pollination
The wind blows pollen from small, less attractive flowers.
Pollination is the movement of pollen from the stamens to the ovary. This movement usually takes place in the same plant.
Pollination also takes place between plants of the same type.
Insect Pollination
Insects transport pollen between plants. Insects are attracted by large aromatic flowers with nectar.
Wind Pollination
The wind blows pollen from small, less attractive flowers.
Friday, April 11, 2014
Plants
Plants are living things. They feed, breathe, grow, and make new plants, but they are different from animals.
Plants don't move from place to place like animals do. Plants keep growing, but animals don't grow when they are older.
Scientists think that there are more than 300,000 types of plants in the world!
Scientists put plants into different groups to classify them. They think about how plants grow and how they make new plants.
Seed Plants
New plants grow from the seeds. Many of these plants produce flowers (for example, daisies) and many others produce cones (conifers).
Non-seed Plants
Ferns and mosses are non-seed plants. They don't make seeds, but they make tiny spores. New plants grow from these spores.
Parts of a Plant
Click on the image below and label the plant.
The Life of a Plant
Plants change at different times of their life. They grow and make new plants. When they get old, they die. This is called a life cycle.
Click on the image below to do these activities:
How Plants Feed
Plants make food for themselves by a process called photosyntesis. This word is made of two parts: 'photo', which means light, and 'synthesis', which means building or putting together.
Plants use sunlight to make food from carbon dioxide (CO2) and water (H2O). Plants get carbon dioxide from the air, and water from the soil. During photosynthesis, plants also produce oxygen (O2).
Plants capture the energy in sunlight and store it in the sugars and starch that they make.
Now watch and sing the 'Photosynthesis' song!
The green parts of a plant are where photosynthesis takes place. A plant's roots, flowers, fruits and seeds cannot make food. They have different functions. Only the green parts have the chemical called chlorophyll. This is a green pigment found mostly in leaves.
Plants don't move from place to place like animals do. Plants keep growing, but animals don't grow when they are older.
Scientists think that there are more than 300,000 types of plants in the world!
Scientists put plants into different groups to classify them. They think about how plants grow and how they make new plants.
Seed Plants
New plants grow from the seeds. Many of these plants produce flowers (for example, daisies) and many others produce cones (conifers).
Non-seed Plants
Ferns and mosses are non-seed plants. They don't make seeds, but they make tiny spores. New plants grow from these spores.
Parts of a Plant
Click on the image below and label the plant.
The Life of a Plant
Plants change at different times of their life. They grow and make new plants. When they get old, they die. This is called a life cycle.
Click on the image below to do these activities:
How Plants Feed
Plants make food for themselves by a process called photosyntesis. This word is made of two parts: 'photo', which means light, and 'synthesis', which means building or putting together.
Plants use sunlight to make food from carbon dioxide (CO2) and water (H2O). Plants get carbon dioxide from the air, and water from the soil. During photosynthesis, plants also produce oxygen (O2).
Plants capture the energy in sunlight and store it in the sugars and starch that they make.
Now watch and sing the 'Photosynthesis' song!
The green parts of a plant are where photosynthesis takes place. A plant's roots, flowers, fruits and seeds cannot make food. They have different functions. Only the green parts have the chemical called chlorophyll. This is a green pigment found mostly in leaves.
Saturday, March 29, 2014
Principal Characteristics of Living Things
We can recognize living things because they share the following characteristics:
- They are born. All living things come from other living thing.
- They eat. All living things need food. The type of food may vary.
- They grow. All living things increase in size during their lifetime. Sometimes they change in appearance.
- They react. Living things can perceive what is going on around them, and they react to what they perceive.
- They reproduce. Living things can create offspring similar to themselves.
- They die. At some time, all living things stop functioning and cease to live.
Friday, March 21, 2014
Living and Non-Living Things
Does it breathe air?
Does it move or grow?
Does it need food or water?
If "yes", then you know... It's a living thing. (x2)
Does it breathe air?
Does it move or grow?
Does it need food or water?
If "no", then you know... It's a nonliving thing. (x2)
Revision Exercises:
Tuesday, March 4, 2014
Subscribe to:
Posts (Atom)