KS2 SATs KS2 Science 1 — Questions and Answers
Question 1: What is the process by which plants make their own food using sunlight?
- Respiration
- Photosynthesis (Correct answer)
- Germination
- Transpiration
Correct answer: Photosynthesis
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to produce glucose and oxygen. It occurs in the chloroplasts, which contain the green pigment chlorophyll.
Question 2: Which organ pumps blood around the human body?
- Lungs
- Kidneys
- Heart (Correct answer)
- Liver
Correct answer: Heart
The heart is a muscular organ that acts as a pump, pushing blood through the network of arteries and veins to deliver oxygen and nutrients to all cells in the body.
Question 3: What are the three states of matter?
- Hot, cold, warm
- Solid, liquid, gas (Correct answer)
- Metal, wood, plastic
- Hard, soft, runny
Correct answer: Solid, liquid, gas
The three states of matter are solid, liquid, and gas. Solids have a fixed shape and volume; liquids have a fixed volume but take the shape of their container; gases have no fixed shape or volume.
Question 4: What gas do plants absorb from the air during photosynthesis?
- Oxygen
- Nitrogen
- Carbon dioxide (Correct answer)
- Hydrogen
Correct answer: Carbon dioxide
During photosynthesis, plants absorb carbon dioxide from the air through tiny holes in their leaves called stomata. They combine it with water and light energy to make glucose.
Question 5: What is the function of the roots of a plant?
- To make food using sunlight
- To absorb water and nutrients from the soil (Correct answer)
- To carry out photosynthesis
- To produce flowers and seeds
Correct answer: To absorb water and nutrients from the soil
Roots anchor the plant in the soil and absorb water and dissolved minerals (nutrients) from the soil. These are transported up through the stem to the leaves where photosynthesis occurs.
Question 6: Which of the following is a carnivore?
- Rabbit
- Cow
- Fox (Correct answer)
- Deer
Correct answer: Fox
A carnivore is an animal that eats only meat (other animals). Foxes eat small animals such as rabbits, mice, and birds. Rabbits and cows are herbivores; deer are also herbivores.
KS2 SATs KS2 Science 1
What is the process by which plants make their own food using sunlight?