Monday, November 10, 2014

Movements of the earth



MOVEMENTS  OF THE EARTH
 1.Fill in the blanks
1. There are two types of movements  rotation  and revolution.
2 .Day and night occur due to rotation.
3.Revolution gives rise to season  change
4.The Earth rotates from west to east  on its own axis.
5.The moon takes about 27 days to complete one revolution around the earth.
6. Earth takes 365 and 1/4days to complete one revolution.
7. We celebrate  Uttrayan day or Makar Sankranti on 14 January.     
8.Seasons in India are termed as ‘Ritu’ in Hindi language.
9. Different planets takes different time to complete one rotation.

Short notes
1.What is axis?
Ans. The imaginary line that passes through the centre of all spinning objects is called   the axis.


2. What are the two movements of the earth?

 Ans.Rotation and revolution.

3.What is a globe?
ans.  A globe is a model of the Earth.
4.Rotation
Ans.The spinning movement of the Earth around itself is known as rotation.
Rotation of the Earth causes day  and night.
5.Solar  Day
Ans.The Earth takes 24  hours to rotate around itself.This duration is called a Solar Day.
6.Day time and night time.
Ans.From sunrise to sunset it is the day time and from sunset to next sunrise it is night time.
7.Orbit.
Ans. The earth moves around the Sun on a fixed elliptical path called the orbit.
8.Revolution.
Ans. The Earth moves around the sun on  its own  orbit.This movement is called Revolution.
Revolution causes season change.
9.Annual motion.
Ans.The motion of the earth around the Sun is known as the Annual motion.
10.Solar Year
Ans.The earth takes 365and 1/4days to revolve around the Sun.This is known as a year.Since the year is measured around  the movement of the Sun.It is also called a solar year.
11.Leap year
Ans.Every fourth year we have an extra day which is added in the month of February.Then that  year becomes a leap year.A leap year has 366  days.
12 How many weeks are there in a year?
Ans.There are 52 weeks in a year.
13.How many seasons are there in India?
Ans.There are mainly  four seasons . Spring, summer, autumn and winter. With reference to India we have a Monsoon season.
14. What is  Prahar ? How many  prahars are there in one day?
Ans. Prahar or Prahara is a Sanskrit term for a unit of time.
The day is divided into eight prahar ( three hours eachJ)four praharas for the day, and four for the night
15.Explain the characteristics of each seasons.


 







Friday, October 17, 2014

ENG (CYCLE TEST 3) - BOOKS

Poem - BOOKS
Q-1. What does the poet like?
  ANS. Books
Q-2. Pick out the rhyming words in the stanzas
ANS.( H.W)
Q-3. What do the books give the poet?
ANS. Joy and comfort
What does the poet consider the books as?
ANS. Best companions through life
Q-4. Who hurts the poet?
ANS. Friend
Q-5. Why does the poet feel that a book is better than a friend?
ANS. The poet feels that the book is better than a friend because a book can never hurt as a friend can.
Q-7. Why is the poet comparing the books to the toys?
ANS.  The poet is comparing the books to the toys because he feels books are better than toys as they do not break, they don’t get old and never stop working.
Q-8. Why does the poet say that the book is like a door?
ANS. The poet said that the book is like a door because it makes us enter the lands of kings and dragons, stars and planets which we have never seen before.
Q-9. What will happen when we open a book? ANS. Scatter the darkness.
 Q-10.What does ‘scatter the darkness’ means?

ANS. It means to fill our world with knowledge by reading different books and move away from ignorance.

eng (cycle test 3) - A fantasy trip to moon

A Fantasy trip to moon
Q-1. The moonbies told Tom that the Earth was losing its color. What was the reason for this?
Ans. The reason behind Earth losing its color is due to deforestation and pollution.
Q-2. What do you think was the most important thing that Tom found on his trip to the Moon?
Ans. The most important thing that Tom found was how beautiful Earth looked like from moon and how its losing its color gradually.
Q-3. What did Moonbies showed to Tom?
Ans. The Moonbies showed Tom the mountains, the valleys and the craters on the Moon.
Q-4. How Earth is different from Moon?
Ans. Earth is more beautiful than moon as it has life, beautiful trees, animals and blue sea.








EVS (CYCLE TEST 3) - PLANT WORLD

Chapter: 4
 PLANT WORLD
1.  Why all types of plants not found in all region?
Ans-There are many plants which need only a particular type of climatic conditions to grow, and so are not found in  all regions.
2. In what direction are the leaves of cold region plants pointing and why ?
 Ans. The leaves are sloping downwards for the  snow to slide easily.
3.  What is the speciality of trees grown near the sea?
Ans. The palm trees and coconut trees grow near the sea.
- These plants are special as the soil in which they grow contains salt.
4. Why trees does not easily grow in desert ?
Ans. -The weather in deserts is very hot during the day and cold in the night .
-As there is very less water due to less rainfall or no rainfall hence trees does not easily grow in desert .
NAME THE FOLLOWING:
1. Trees growing in rainforest
-Wild jack, Bishop wood, Teak and Poon tree , shrubs like Chatri
- Rubber and rice need a lot of water to grow.
2. Trees grow in warm regions
- Mango tree, Neem tree
 3. Trees grow in the deserts
- Cactus, Keekar and Date palm.
4. Trees that we see in our surroundings   
- Banyan tree, Peepal tree
5. Trees grow on mountains where it is always cold
 -Tall pines, the deodars and the fir trees
 - Small ferns and mosses also grow here.
Define:
1. Plants that grow partly or wholly immersed in water are called aquatic plants.
2. Land without sufficient water or rainfall is called a desert.
3. Forests which receive a lot of rain is known as ‘rain forests’.
 SHORT NOTE :
1.  Cactus:
Cacti have the ability to store large amounts of water.
The stored water keeps them alive during dry periods.
 Cacti are also protected by sharp spines, or needles.
These discourage animals from eating them.
2. LOTUS:
-Lotus is the national flower of India.
- Though we see it floating on water, it is actually fixed on it.
- Lotus has its roots planted in the soil under water.
-The lotus stem is a healthy food to eat.

FILL IN THE BLANKS:
1. A green coloured pigment called chlorophyll helps leaves to prepare food.
2. The chlorophyll traps the sunlight which gives energy to the plant.
 3. It uses sunlight for making food from carbon dioxide and water.
4. This process of making food using sunlight is called photosynthesis.
5. Herbarium is a collection of dried plants mounted, labelIed , and systematically arranged for use in scientific study.
6. Duckweed and water hyacinth floats on water.
7. Water hydrillas are plants found below water.
8. Mosses are flowerless plants.
9.Trees grown in warm region have spread branches and  many leaves.

GIVE REASON:
1)      When a leaf falls from a tree or a plant it loses  its
colour.
Ans: Leaves fall from the tree in winter as the earth receives
 less sunlight and the air becomes colder. Trees seal the
 spots where the leaves are attached blocking the flow of
 fluid to the leaves, thus changing its colour and then they
fall off.

2)   Cactus has no leaves.

Ans: Cactus has no leaves because leaves  are modified into spines(thorns) to reduce loss of water.


 PHOTOSYNTHESIS



EVS(CYCLE TEST 3) - ENERGY

CH-7.  ENERGY
Answer the following :
Q-1. What is energy?

Ans. Energy is the ability to do work.

Q-2. Why do we need energy?

Ans. We need energy to perform our daily activities.

Q-3. Where do we get energy from for our daily activities?

Ans. We get energy for our daily activities from the food that we eat.

Q-4. Which are the sources of energy?

Ans. Natural resources such as air, water, wood and sunlight are used as source of energy.

Q-5. Name any three activities for which you need energy?

Ans.

Q-6. What is solar energy?

Ans. The energy that we get from the sun is known as solar energy.

Q-7.How is solar energy used by the plants?

Ans. Solar energy is used by plants to make food. This process is known as photosynthesis.

Q-8.What is wind energy used for?

Ans. Wind energy is used in windmills to produce electrical energy.



Q-9. Explain the meaning of photosynthesis.
Ø Photo means "with the use of light" and synthesis means "building"."
Ø So photosynthesis means building or growth with the use of light.
Q-10. What is the energy of moving water used for?
Ans. The energy of moving water is used to produce electricity.

Q-11. What are fuels?
Ans. Some natural substances that have energy stored in them are known as fuels.

Q-12.Explain the different types of energy.
Ans.
                                                      FORMS OF ENERGY
                                                         
Solar Energy
Wind Energy
Heat Energy
Light Energy

The energy
that we get
from the sun
The energy
produced
from moving
air
When fuels like coal or
petrol are burnt, a lot
of heat is produced
which is a form of
energy.Used for
cooking,warming our
homes etc.

Sun, candles,
electric bulbs
eytc are the
sources of
light energy.


Q-13. Why is the world so lively and unique?

Ans. The world is so lively and unique because of energy.