Here you can find OCR Gateway past papers for GCSE chemistry. Use the links below to download question papers and mark schemes. If you’re unsure whether you need Foundation or Higher papers, consult ...

Try this quiz based on GCSE Combined Science past papers. Choose the topic you would like to revise and answer the questions. By working your way through the science questions created by experts, you ...

The latest short science news items from C&EN. Open an introductory chemistry textbook. What is a covalent bond? A covalent bond occurs when atoms share electrons in a molecule. What is a hydrogen ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...