In Science Mission Plus feature, your child can practise skills relevant to every topic within your child's curriculum. After completing questions in each skill, your child can earn KoKo credits which can be used to unlock fun and exciting activities such as Brain Games and StoryScience.
Each skill in Science Mission Plus has 3 stages of attempts with different sets of unique questions each. Each subsequent stage has a higher difficulty (Stage 1 → Stage 2 → Stage 3). Your child will need to have at least 8 answers correct to progress and unlock the next stage.
Other than having more questions to practise on for each skill, your child can practise questions in the same skill more than once and still get KoKo credits. How many credits are earned will depend on the following 3 components (in order).
1) Stage bonus (one-time per stage)
2) Gift box bonus (repeatable)
3) Account XP level bonus (repeatable and need to be at least level 30)