Science Mid-term Exam – Grade 4

 Design a food chain made up of 4 organisms:

What does an energy pyramid represent?

Read the case below to be able to answer for the following question:  Layla has a plant. She puts it inside her locker in the room and locks the door of the locker. Layla and her brother Aziz were feeding the plant water for three days. But they noticed that the plant was withering instead of growing which was surprising Layla and Aziz. Q: Write a short paragraph including the reason behind that the plant did not grow and give recommendations for solving the problem:

Design a food web consisting of at least 3 food chains:

Animal cells are surrounded by a solid wall called the cell wall.

Attribute is one of the characteristics of living organisms.

Bacteria are multicellular.

Vertebrates are animals that do not have a backbone.

A food chain shows the transfer of energy from one organism to another.

All of the following are invertebrates Except for:

The Ascaris worm is an example of:

All of the following are cold-blooded Except:

A group of individuals that belong to the same species and live in the same area.

Which of the following regions is moderately cold in winter and warm to hot in summer, with moderate rainfall, and fertile soil:

Which one do you like?

……………..…. are heterotrophs with cell walls and most feed on dead or decaying organic matter

……………………………………. are plants that do not produce seeds.

Scientists classify plants to vascular/non-vascular or …......

Fishes breathe through..................

Label the steps of photosynthesis on the following figure:

Type question here. Example: Practice makes you [Blank].

Type question here. Example: Practice makes you [Blank].