solar

Everyday

Solar means to do with the Sun or coming from the Sun. tree →

In the lessons

In science, the solar system is the Sun and everything that goes around it: eight planets, moons, asteroids and comets. Solar energy or solar power is energy from sunlight, collected by solar panels on roofs; it is renewable and clean. A solar eclipse happens when the Moon passes between the Earth and the Sun; never look straight at the Sun, even in an eclipse. Solar-powered calculators and garden lights work using light.

Examples

• Earth is the third planet in the solar system. tree →
• Solar panels turn sunlight into electricity. tree →
• My calculator is solar-powered. tree →
• Never look at the Sun during a solar eclipse. tree →
• Solar power is a renewable energy. tree →
• Jupiter is the biggest planet in our solar system. tree →
• The solar lights in the garden come on at night. tree →

Note

Adjective only (no «a solar»). Compare «lunar» (to do with the Moon). The solar system has eight planets (Pluto is now called a dwarf planet). Solar energy is renewable, unlike coal and oil.