CBSE Class 9 - Maths- Periodic Test Paper - (2016-17) (#cbsePapers)

CBSE Class 9 - Maths- Periodic Test Paper - (2016-17) 

Topics covered are:
1. Euclid Geometry
2. Co-ordinate Geometry
3. Lines and Angles

CBSE Class 12 - Physical Education - Solved Question Paper (Delhi - 2016-17)

Physical Education - Solved Question Paper

CBSE Class 12 - (Delhi - 2016-17)

☛ Download Class 12 Physical Education Question Paper (2016-17) Delhi Region


1 - Mark Questions

Q1: Fixtures are the schedule, fixed for the matches. What is a Bye?

Answer: A Bye in a fixture means that the team which gets a bye is exempted from playing the first round and enters the second round directly.

OR

Byes are given in the first round by which the number of teams playing in the 2nd round is reduced to the power of two.


Q2: What are renewable resources?

Answer: Renewable resources are those natural resources which can be used repeatedly since it is replaced naturally/ replenished over time by some natural power eg. Sunlight, water, air etc.


Q3: Fats are derived from two sources. Name them.

Answer:
Animal sources – Ghee, Butter, Curd, Fish Oil, Milk, Meat, Egg etc.
Vegetable Sources- Soybean, Olive, Mustard, Coconut, Groundnut, etc.


Q4: What is Lordosis? Explain

Answer: Lordosis is a postural deformity of the spine. In this deformity, the spine curvature is increased inward in the lumbar region.

CBSE Class 10 - Chemistry - Acids and Bases - pH of common Acids, Bases and Salts (#cbseNotes)

pH of common Acids, Bases and Salts

The acidity of an aqueous solution relies on the concentration of hydronium ions, [H₃O⁺]. For various products (acids, bases and salts), the magnitude of this concentration varies and pH scale is used conveniently. The pH of a solution is defined as the negative base-10 logarithm of the hydronium ion concentration (in mol/L). Here follows a partial list of pH of common acids, bases and salts.

Solution	PH range
HCL	1.0 - 2.0
Gastric Juices	1.4 - 2.0
Lemon Juice	2.0- 3.0
Vinegar	4.0
Tomato Juice (Oxalic Acid)	4.1
Coffee	5.0
Milk (Lactic Acid)	6.5

Learn English Vocabulary From News Papers - August 5 2017 (Day 6)

Learn English Vocabulary From News Papers - August 5 2017
(Day 6)

The Indian Express

Heritage

In Metro's heritage walks, some architecture, some jalebis

meaning: features or things of past belonging to the culture of a particular society, such as traditions, languages, or buildings (विरासत, धरोहर)


Examples:
1. The Taj Mahal has been designated a world heritage site.
2. Indian classical music is an important part of curltural heritage.

CBSE Class 8 - Science - Stars and Solar System - Stars vs Planets (#cbseNotes)

DIFFERENCE BETWEEN STARS AND PLANETS

Class 8 - Science - Stars and Solar System

Child Psychology and Behavioral Management - A few tips (#parenting)

Child Psychology and Behavioral Management
- A few tips

(Source unknown, shared by a reader.Worth sharing it as blog post)

T

o all parents and even grandparents, as well as teachers, here are some unbelievably simple parenting ideas that work.

1. Children need a minimum of eight touches during a day to feel connected to a parent.

If they’re going through a particularly challenging time, it’s a minimum of 12 a day. This doesn’t have to be a big deal; it could be the straightening of a collar, a pat on the shoulder or a simple hug.

2. Each day, children need one meaningful eye-to-eye conversation with a parent.

It is especially important for babies to have that eye contact, but children of all ages need us to slow down and look them in the eyes.

Learn English Vocabulary From News Papers - August 4 2017 (Day 5)

Learn English Vocabulary From News Papers - August 4 2017
(Day 5)

The Indian Express

Surge

After tomato, surge in onion price likely

meaning: A sudden large increase (बड़ी लहर, आवेश)

Examples:
1. Easy bank loans have surged housing prices in recent months.
2. Tides surged after the storm and flooded the coatal areas.