This study investigated the effects of incorporating creative activities into chemistry lessons on high school students' higher-order thinking skills in the Philippines. Sixty students were randomly assigned to either an instruction with creative activities group or an instruction with no creative activities group. Both groups took a pre-test and post-test to measure higher-order thinking skills. The study found no significant difference in post-test scores or gain scores between the two groups, suggesting that creative activities did not improve higher-order thinking skills more than traditional instruction alone.