What is frequency? Frequency can be defined as how often something occurs. The concept of frequency is studied as a maths topic in class 8, Karnataka State Board. Let us briefly review the topic Frequency and Frequency Distribution. Imagine that you are a member of the local library. If you borrow and read 2 books in January, 4 books in February and 3 books in March. Then, the frequency of the same was 2, 4 and 3 respectively. What is frequency distribution? How often something occurs can vary with the data being distributed. The distribution of the frequency of an occurrence is the frequency distribution. The frequency distribution can be represented in a simple tabular form for the easy garnering of information. For example, you can throw a dice 10 times and note down what number shows up. Imagine that … Continue reading →
Acids, bases and salts is a class 7 science topic covered by Karnataka State Board and many other educational boards. Let us briefly go through this topic. You may have heard people state that lemon and orange contain citric acid. How does a lemon taste? What gives it that taste? What about tamarinds? Yes, lemons, oranges and tamarinds are acidic and contain acids. On the other hand, substances like baking powder and soap which you are familiar with are basic in nature. Indicators known as pH indicators are used to identify whether a substance is an acid or a base. The most common indicator is the litmus indicator. It is a natural indicator and is made from lichen material. Indicators can also be made from other natural substances like turmeric and red cabbage. One interesting way of making an acid-base … Continue reading →
Nutrition in animals is a class 7 science topic, Karnataka State Board. Let us discuss this topic. Do animals make their own food like plants? How do different animals obtain food? Heterotrophic nutrition involves breaking down of organic compounds obtained through external sources for an animal’s sustenance. All animals are heterotrophic as they cannot make their own food and obtain their food through external sources. With regard to the mode of heterotrophic nutrition, animals are grouped in the following manner: Herbivores: Herbivores are animals that get their food directly from plants. Carnivores: Carnivores get their food by eating other animals. Omnivores: Omnivores get their food from both plants and animals. Parasites: Parasites derive their food by living and feeding on other live animals. Scavengers: Scavengers obtain their food by feeding on the body of dead animals. Nutrition in animals involves five … Continue reading →
Combustion and types of combustion is one of the science class 6 topics covered under Karnataka State Board. Let us briefly review this topic. Watching a candle burning is something which you may have watched from time to time. Can you think of all the factors that are required for a candle to burn? Will the candle continue to burn if your teacher places a glass jar over it? It will get extinguished. Why? What will happen if water is poured on the candle? Yes, the candle will get extinguished again. If no wax is present, will the candle be able to burn? Can you now think of all the factors required for combustion? The three factors required for combustion are: Oxygen. Heat energy. A combustible substance. Combustion can be defined as a chemical reaction that occurs between substances in the presence of oxygen and … Continue reading →
Finding the highest common factor is a class 6 maths topic which is covered by many educational boards including the Karnataka State Board. Let us discuss the two methods which are generally used to find the highest common factor (HCF), the prime factorization method and the continued/continuous division method. Prime Factorization Method The prime factorization method is a very straightforward method to find the highest common factor of a group of numbers. In this method, the HCF is obtained from the product of the common prime factors of the numbers. For example, consider 108 and 126 Here, 108 = 3 x 3 x 3 x 2 x 2 126 = 3 x 3 x 2 x 7 Therefore, the HCF of 108 and 126 = 3 x 3 x 2 = 18 Can you now find the HCF of 143 … Continue reading →
A perfectionist child may be performing well in academics and extra-curricular activities. For parents and educators, this would seem like everything is going well with the child. However, they may find that the streak of perfectionism in the child is causing the child to become anxious or depressed during setbacks. The pressure to always live up to a certain standard may be coming from the child himself/herself. External factors like parents, educators, the school or the social scenario may also be contributing to heightened perfectionism. The perfectionist child may constantly want to prove himself/herself which can lead to anxiety and unhealthy self-esteem. Let us discuss how one can help a perfectionist child become more balanced and realistic. Give unconditional love and support to the child: The child needs to know that you like him/her unconditionally. It is important for parents … Continue reading →
