Logic Gates (Electronics)
Test your knowledge on Logic Gates.
Unit Conversion in the Metric and English Systems: Area
You'll practice converting between units of measure for area in the metric and English measurement systems.
Unit Conversion: Temperature
You'll practice converting units of temperature measure in the Fahrenheit and Celsius scales.
Rounding Decimal Numbers (Set 1)
You'll learn to round decimal numbers to the given place value.
The Planets: Saturn
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. Cassini–Huygens is an unmanned spacecraft sent to study the planet Saturn. The probe arrived at Saturn in 2004.
The Planets: Mars
Mars is the fourth planet from the Sun. Presently, information is being relayed from nine active probes on or in-orbit around Mars, including six orbiters and two rovers. Recently, Europe's ExoMars mission landed on Mars on October 19th 2016.
Relative Error
You'll find the relative error of measurement numbers rounded to the correct number of significant digits.
Rounding Decimal Numbers (Set 2)
Hot spot
An hot spot is hot magma that come up from the ground and creates volcanoes.
The Scientific Endeavour (Lower Secondary Science)
Scientific Endeavour Quiz