Practice Quiz

Some mixtures can be a combination of various solid particles, such as sand and pebbles. Such

mixture components can be separated by passing the mixture through a mesh. What term is

used to describe this method of separating mixture components?

Uno divided a secret number by 6. Then he added 6 to the result and multiplied the number he obtained by 6. In the end he got 666. What was Uno’s secret number?

Which of the following is NOT an indicator of chemical change?

• A. Change in material’s state or phase

• B. Change in color

• C. Formation of bubbles

• D. Evolution of heat

The product of two natural numbers is 2024. What is the largest possible sum of these two numbers?

What weather instrument is used to measure the level of precipitation or rainfall?