This learning activity, titled 'The Sentence Strongbox', is designed for students to identify subjects and verbs while constructing simple sentences. The objective is for students to recognize that a complete sentence—referred to as a 'strongbox'—is composed of two critical components: the subject (who or what the sentence is about) and the verb (what the subject is doing). The activity includes reading space-themed sentences and identifying the corresponding subjects and verbs. Students will also engage in sentence construction by creating their own space-related sentences, ensuring each contains one subject and one verb. The resource features a word bank to assist students, and includes guided practice with incomplete sentences that they can fill in, promoting interactive learning and foundational grammar skills.