poison

"My friend told me there was something in the box, but I didn't know what it was yet. "

"The single-celled organism was studied by the biology students in their science class. "

"The scientist carefully examined the substance to determine its chemical composition. "

"After finding the lost wallet, several people were claiming it as their own. "

"The student's malicious comment about his classmate's new shoes hurt her feelings. "

"My terrible headache kept me from concentrating on my math homework. "

"The mushrooms growing in the park were poisonous, so we didn't pick any to eat. "

"The assassin poisoned the king."

"The gardener used fertilizer to help the flowers in the garden grow bigger and stronger. "

"The politician received a lot of public criticism for his controversial stance on the issue."

"The information about the project deadline resolved my uncertainty; now I know what needs to be completed. "

"The teacher played a catalytic role in inspiring the students to pursue science. "