Based on your need for a formative assessment task for civics, I recommend using Quizizz. This platform allows you to create gamified quizzes and lessons that can be customized to your specific teaching needs.

The key features of Quizizz that could be particularly useful for you include:

• Quiz Creation: You can create quizzes that are paced according to your or your students' preferences. This flexibility can be beneficial for formative assessments, as it allows you to adjust the pace based on the students' understanding of the material.
• Pre-made Quizzes: Quizizz provides access to millions of pre-made quizzes. You can customize these to suit your specific teaching needs, which can save you time when preparing formative assessments for civics.
• Detailed Reports: After conducting the quizzes, Quizizz generates detailed reports on student performance. These reports can provide valuable insights into your students' understanding of the material, helping you to identify areas where they may need additional support.

In addition, Quizizz supports a Bring Your Own Device (BYOD) policy, allowing students to access the quizzes on their own devices. This feature can be particularly useful for remote learning situations.

Finally, Quizizz incorporates elements of gamification, such as leaderboards and instant feedback, which can enhance student engagement and make the learning process more enjoyable.