Imaginology is back at the OC Fair to give kids from preschool to high school, as well as adults, a chance to discover and learn more about STEAM (science, technology, engineering, arts and math) through different interactive exhibits.

Visitors can explore makeshops, watch demonstrations, take part in competitions and put lessons to practice with various hands-on activities.

There will also be entertainment for all. Some of the performances will include a children’s choir, a teen indie rock band, a violin pop group and others.

Children can win a prize by getting a scavenger hunt card stamped as they go along. Dozens of community groups participate.

If you go

When: 10 a.m. to 5 p.m. April 15 and April 16

Where: OC Fair & Event Center, 88 Fair Drive, Costa Mesa

Cost: Free admission, $12 parking

Information: ocfair.com/steam