Science · Fourth Grade, Primary · Unit 3: Exploring Ecosystems · First Semester
A 10-question quiz; after every question you'll see the right answer with an explanation.
Earn 5 points for every new star.
No account? Create one for free
Ecosystems change, sometimes for natural reasons such as drought and floods, and sometimes because of humans, such as cutting down trees. In this lesson you learn about these changes and how living things adapt to survive or migrate.
💡 Tip: For each example, ask yourself: is it caused by nature or by humans? And does it harm the ecosystem or help it? Tree planting and nature reserves are helpful human actions.
Ghada explains the lesson and answers your questions about it. Log in to get started.
It stores fat in its hump to use when food is scarce, it can go without water for days, it has long eyelashes that protect its eyes from sand, and it has wide, padded feet that don't sink into the sand.
In certain seasons they move from cold places or places with little food to warmer places richer in food, then return when conditions improve.
Start the lesson quiz on Study with Ghada: 10 questions from the Science Fourth Grade, Primary question bank. After each answer you'll see the right answer with an explanation, and any questions you miss move to “Review my mistakes” until you master them.
Yes, completely free. They're built on the Science - Grade 4 - Semester 1 lessons in the same order as the book, and every question is reviewed and approved by a teacher before students see it.
