Reproduction: Two resources for KS3 Science

Reproduction: Two resources for KS3, use at the start of the topic to gain interest, during a particular lesson or at the end for revision.
One resource is a 15-question multiple choice quiz on PowerPoint. Also provided are a PowerPoint instruction slide and the answers at the end of the presentation. Each question has 4 possible answers, and the slide automatically advances after twenty seconds.
I designed the quiz to calm a very excitable year 7 group on a Friday afternoon. It worked well, they enjoyed the quiz, which I insisted on silence for. Then we discussed each answer at the end. It was usually a good group discussion about why some choices were incorrect and cleared up some misconceptions well.
The second resource is a key word code breaker. The code breaker activity requires students to complete a crossword style grid. The letters have been replaced by numbers and they are given a table informing them what number represents what letter.
4 versions of the code breaker are provided, differentiated by increasing the number of missing letters in the table. This makes the code breaker more challenging by requiring students to deduce the missing letters and complete the key word.
Topics covered include: Adolescence, the reproductive system, fertilisation and implantation, development of a foetus, the menstrual cycle, flowers and pollination, fertilisation and germination, seed dispersal.