SOCIAL AND NATURAL SCIENCE
LIFE CYCLE OF A FROG
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What makes a mammal a mammal, or a bird a bird? Click on the buttons to learn more!
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Learn more about special topics that separate the different kinds of animals!
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Test yourself with the Classification Game!
AMPHIBIANS
What is an amphibian?
An amphibian is an animal that lives part of its life in the water and part on land. Many amphibians begin life with gills to breathe in the water and then develop lungs as they get older.
What are the stages of the frog’s life cycle?
Eggs: Frogs lay thousands of eggs that do not have shells. They are covered with a jelly-like substance that helps protect them from being eaten by creatures in the water. The eggs stick together to form frog-spawn that floats to the top of the water. A few days later the tadpoles hatch out.
Tadpoles: Tadpoles have a head, tail and body. They live under water and breathe through their gills. They eat algae and other tiny water plants as they swim. After about a month, a bulge appears at the base of their tail where their hind legs will grow. They also begin to grow lungs for breathing.
Tadpoles to Froglets: After seven weeks their hind legs begin to grow. After nine weeks, front lets grow and their tails are almost gone. After about twelve weeks the tadpoles can swim to the surface of the water and breathe in air.
Adult Frogs: After about three months, the tadpoles have become young frogs. They can live in or out of water and eat insects or worms.
Click the thumbnail below to see a picture of the frog life cycle.
Activities:
Something Froggy - Put the pictures in the correct order on this website.
Frog Life Cycle Match - Put the pictures in order. Write a sentence to go with each stage. (Inspiration template)Life Cycle Picture - Draw a picture of the frog life cycle. (KidPix template)Interactive Quiz - Take this online quiz to see how much you’ve learned about frogs!VERTEBRATES
INVERTEBRATES
Gregor Mendels Pea Plants
Austrian monk and avid Gardener Gregor Mendel is credited for discovering why tall plants (in his case, pea) don’t always produce tall offspring, nor do smaller plants.
PLANTS
Science videos, lessons, quizzes and games about plants that make learning fun and interesting.
Click on the image to visit the website.
THE CELL
Cells are the Starting Point All living organisms on Earth are divided in pieces called cells. There are smaller pieces to cells that include proteins and organelles. There are also larger pieces called tissues and systems. Cells are small compartments that hold all of the biological equipment necessary to keep an organism alive and successful on Earth. A main purpose of a cell is to organize. Cells hold a variety of pieces and each cell has a different set of functions. It is easier for an organism to grow and survive when cells are present. If you were only made of one cell, you would only be able to grow to a certain size. You don’t find single cells that are as large as a cow. Also, if you were only one cell you couldn’t have a nervous system, no muscles for movement, and using the internet would be out of the question. The trillions of cells in your body make your life possible. One Name, Many Types There are many types of cells. In biology class, you will usually work with plant-like cells and animal-like cells. We say animal-like because an animal type of cell could be anything from a tiny microorganism to a nerve cell in your brain. Plant cells are easier to identify because they have a protective structure called a cell wall made of cellulose. Plants have the wall; animals do not. Plants also have organelles like the chloroplast (the things that make them green) or large water-filled vacuoles.  We said that there are many types of cells. Cells are unique to each type of organism. Humans may have hundreds of types of cells. Some cells are used to carry oxygen (O2) through the blood (red blood cells) and others might be specific to the heart. If you look at very simple organisms, you will discover cells that have no defined nucleus (prokaryotes) and other cells that have hundreds of nuclei (multinucleated). The thing they all have in common is that they are compartments surrounded by some type of membrane. |
The cell nucleus acts like the brain of the cell. It helps control eating, movement, and reproduction. If it happens in a cell, chances are the nucleus knows about it. The nucleus is not always in the center of the cell. It will be a big dark spot somewhere in the middle of all of the cytoplasm (cytosol). You probably won’t find it near the edge of a cell because that might be a dangerous place for the nucleus to be. If you don’t remember, the cytoplasm is the fluid that fills cells. |
SUSTAINABLE CLEANING
Click on the image to learn about sustainable cleaning.
The Green Guide for Kids: the 3 R's
Reduce, Reuse and Recycle. The last R, recycling, tends to get all the credit. Reducing and Reusing, however, are even more important. If you can reduce the materials you consume you will not only create less waste, you also won’t need to worry about what to do with all the things that you buy when you are done with them. Reuse is a great way to make the most of the things that you do buy. Once you no longer need or want something, pass it on! One man’s trash is another man’s treasure. Buying or trading vintage, refurbished and used items is a fun way to get cool stuff while preventing pollution and saving the earth’s precious resources.
You can recycle up to 84% of your trash simply by taking it out of the rubbish bin and putting it in the recycling bin. Items made from recycled materials take far less energy and create only a fraction of the pollution to produce than items made from brand new materials. And of course, imagine the natural resources that are saved!
Here are some great ways to Reduce, Reuse and Recycle:
– Buy only what you need and use all of what you buy.
– Avoid buying things that use excessive packaging and buy in bulk.
– Buy durable things that will last a long time
– When things break, see if they can be fixed before throwing them away.
– Wash and reuse plastic cups, utensils and bags.
– Precycle by buying products whose packaging can be recycled
– And always bring your own bag! If you are just buying a few things just carry them in your hands.
– Complete the cycle and buy products made from recycled materials. When you buy products made from post-consumer recycled materials you are helping to reduce carbon emissions and saving resources.
http://www.recycling-guide.org.uk/rrr.html
LOS RÍOS DE ESPAÑA
¿Quieres jugar a los ríos? Ahora puedes averiguar cuál es cada río; sólo tienes que elegir una respuesta de las tres opciones que te doy. Si aciertas, pasas a la siguiente pregunta; pero es caso contrario, repites el mismo mapa hasta que aciertes.
Es muy sencillo y divertido. te lo pasarás muy bien. Se tarda poco en hacer.
¡ Inténtalo !
Descárgate el archivo, así lo tendrás siempre en tu ordenador, y podrás practicarlo las veces que quieras.
ESPAÑA POLÍTICA
El territorio total de España es de 504.645 km², y ocupa gran parte de la Península Ibérica. Es también el cuarto país en extensión dentro de Europa. Al territorio peninsular se le suman: las Islas Baleares ( en el mar Mediterráneo), las Islas Canarias (en el Océano Atlántico), las ciudades autónomas de Ceuta y Melilla (en la costa norte de África), las islas Chafarinas, el peñón de Vélez de la Gomera, el peñón de Alhucemas, el municipio de Llívia (rodeado por Francia), la isla de Alborán, las islas Columbretes y varios islas e islotes frente a las costas peninsulares.
Las comunidades autónomas españolas son 17. Aquí os dejamos la lista de las comunidades autónomas y sus capitales:
Andalucía
Capital de la Comunidad: Sevilla
Aragón
Capital de la Comunidad: Zaragoza
Canarias
Capital de la Comunidad: Las Palmas de Gran Canaria / Tenerife
Cantabria
Capital de la Comunidad: Santander
Castilla y León
Capital de la Comunidad: Valladolid
Castilla-La Mancha
Capital de la Comunidad: Toledo
Cataluña
Capital de la Comunidad: Barcelona
Comunidad de Madrid
Capital de la Comunidad: Madrid
Comunidad Foral de Navarra
Capital de la Comunidad: Pamplona
Comunidad Valenciana
Capital de la Comunidad: Valencia
Extremadura
Capital de la Comunidad: Mérida
Galicia
Capital de la Comunidad: Santiago de Compostela
Islas Baleares
Capital de la Comunidad: Palma de Mallorca
La Rioja
Capital de la Comunidad: Logroño
País Vasco
Capital de la Comunidad: Vitoria
Principado de Asturias
Capital de la Comunidad: Oviedo
Región de Murcia
Murcia
Ciudad Autónoma de Ceuta
Ciudad Autónoma de Melilla
España cuenta con 50 provincias en las que se divide el país, y las ciudades autónomas de Ceuta y Melilla. Este es el listado de provincias españolas:
Álava
Albacete
Alicante
Almería
Asturias
Ávila
Badajoz
Barcelona
Burgos
Cáceres
Cádiz
Cantabria
Castellón
Ceuta
Ciudad Real
Córdoba
Cuenca
Gerona
Granada
Guadalajara
Guipúzcoa
Huelva
Huesca
Islas Baleares
Jaén
La Coruña
La Rioja
Las Palmas
León
Lérida
Lugo
Madrid
Málaga
Melilla
Murcia
Navarra
Orense
Palencia
Pontevedra
S.C. de Tenerife
Salamanca
Segovia
Sevilla
Soria
Tarragona
Teruel
Toledo
Valencia
Valladolid
Vizcaya
Zamora
Zaragoza
MAPAS INTERACTIVOS
Estudia y practica la geografía española pinchando en el mapa.
FUN WEATHER FACTS
Enjoy these fun weather facts for kids. Check out the amazing snow fall, rain fall and wind speed records while learning more about lightning, tornadoes and cyclones.
Read on for a range of interesting facts about weather and climate.
- The highest temperature ever recorded in Antarctica is 14.6 °C (59 °F), recorded on January 5, 1974. More temperature facts.
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The most rain fall ever recorded in 24 hours is 182.5 centimetres (71.9 inches) in Foc-Foc, La Réunion, during tropical cyclone Denise on January 8, 1966.
- The most rain fall ever recorded in one year is 25.4 meters (1000 inches) in Cherrapunji, India.
- The highest snow fall ever recorded in a one year period was 31.1 meters (1224 inches) in Mount Rainier, Washington State, United States, between February 19, 1971 and February 18, 1972.
- The fastest wind speed ever recorded is 484±32 km/h (301±20 mph). This was a 3 second gust recorded by a Doppler on Wheels (DOW) radar unit in Oklahoma City on May 3, 1999.
- The heaviest hailstone ever recorded weighed 1.0 kg (2.25 lb) and landed in Gopalganj District, Bangladesh on April 14, 1986.
- Clouds can be categorized into a number of different types; these include cumulus, stratus, cirrus and nimbus.
- The Earth experiences millions of lightning storms every year, they are incredible discharges of electricity from the atmosphere that can reach temperatures close to 54,000 °F (30,000 °C) and speeds of 60,000 m/s (130,000 mph).
- The USA has more tornadoes than any other country in the world, averaging around 1200 a year. This is due largely to its unique geography which forms an area in central USA called “Tornado Alley” which is frequently hit by tornadoes.
- Tropical cyclones (often referred to as hurricanes or typhoons) feature strong winds, driving rain, rough seas and areas of low atmospheric pressure. They frequently form in tropical areas of the globe and can do considerable damage to populated areas. Examples of this include the 1970 Bhola cyclone, Typhoon Nina which hit China in 1975 and more recently in 2005 when Hurricane Katrina which caused great devastation and loss of life when it hit southern parts of the USA.
Weather Facts
Enjoy these fun weather facts for kids. Check out the amazing snow fall, rain fall and wind speed records while learning more about lightning, tornadoes and cyclones.
Read on for a range of interesting facts about weather and climate.
WEATHER WIZ KIDS
Welcome to Weather Wiz Kids® a website especially designed for kids by meteorologist Crystal Wicker to allow you to learn more about the fascinating world of weather.
(Click on the image)
Welcome to Rocky’s journey around the rock cycle!
Hi, my name is Rocky
I am your guide on the journey around the rock cycle. The rock cycle is a continuous process that occurs over millions of years. It makes new rock, destroys old rock, and recycles the ingredients of the Earth’s crust over and over again!
If you want to join me on an amazing journey under the Earth click on the cycle below.
You can start wherever you want, but it is probably best to begin at Weathering and work your way around it from there.
Have you mastered the rock cycle yet? Test yourself here!
Do you want to learn more about latitude and longitude?
If you would like to explore the topic of latitude and longitude further, here are some interesting websites:
Greenwich 2000 - information on the International Meridian Conference of 1884
Latitude & Longitude - information from WorldAtlas.com
Latitude and Longitude - information from nationalatlas.gov
Latitude And Longitude Map Match Game - practice using latitude and longitude
