What is a mixture in which the particles are big enough to see

It looks red because you can see the red gelatin particles in the mixture. However, the particles are too small to settle to the bottom of the dish. A suspension is a heterogeneous mixture with large particles. The particles are large enough to see and also to settle or be filtered out of the mixture

i think it is true since you can test the answer and can use observations to complete it.

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )