What is a rational number?

A rational number is a number that can be expressed as a fraction, where both the numerator and denominator are integers. In other words, it is a number that can be written in the form of a ratio. All whole numbers are rational numbers, since they can be expressed as fractions with a denominator of […]

What is a 401k?

A 401k is a retirement savings account that is offered by many employers. Employees can choose to have a portion of their paycheck automatically deposited into their 401k account. 401ks often have employer matching contributions, which can make them an attractive option for saving for retirement. There are several benefits of a 401k. One benefit […]

What is an URL?

An URL is a Uniform Resource Locator and is used to specify the location of a resource on the internet. URLs are commonly used to point to web pages, but can also be used to point to other resources, such as files or images. For example, the URL “https://www.example.com” points to the web page located […]

What is an earthquake?

An earthquake is a sudden, violent shaking of the ground caused by the shifting of rocks deep below the earth’s surface. Earthquakes can occur anywhere in the world at any time, and often cause extensive damage to buildings and other structures. They can also trigger landslides, tsunamis, and other devastating natural disasters.

Question words worksheet

This worksheet is created for Grade 2 students.  There are sentences with blank places.  The students will find correct form of question words and add them there. Please download the PDF Question Words for Grade 2 – exercise 1

What is a Solar storm?

A solar storm is a disturbance in Earth’s magnetosphere that occurs when there is a sudden release of energy in the form of solar wind and magnetic fields from the sun. This can happen during periods of intense solar activity, such as when there is a large flare or coronal mass ejection. Solar storms can […]

What is Summer Solstice?

Summer Solstice (2022) is the longest day of the year and occurs when the sun is at its highest point in the sky. This happens because the earth’s tilt is pointing towards the sun. The word ‘solstice’ comes from the Latin solstitium, meaning ‘sun-standing’. After the solstice, the days start getting shorter again until the […]

What is a function in programming languages?

A function is a set of code that performs a specific task. Functions are often written to take arguments, or input values, and return a result. In many programming languages, functions are defined in modules, or libraries, which can be imported into other programs. Uses of functions Functions are often used to abstract away complex […]

What is a gene?

A gene is a unit of heredity and is typically a segment of DNA that codes for a protein or RNA molecule. Genes are passed down from parents to their offspring and are responsible for an individual’s inherited traits.