Interactive Reading — Science

Photosynthesis is the process by which green plants convert sunlight into chemical energy. During this process, plants absorb carbon dioxide from the air and water from the soil, producing glucose and releasing oxygen as a by-product. Complete the sentence: According to the passage, photosynthesis ___. A) requires darkness to occur B) produces oxygen as a by-product C) only occurs in tropical plants D) converts oxygen into carbon dioxide

The human body contains approximately five litres of blood, which circulates through a network of blood vessels. The heart pumps blood to the lungs, where it picks up oxygen, and then sends it to the rest of the body through arteries. Complete the sentence: Blood picks up oxygen in the ___. A) arteries B) heart C) lungs D) blood vessels

Antibiotics are medications that kill bacteria or prevent them from reproducing. However, overuse of antibiotics has led to the emergence of resistant bacteria that can no longer be treated with standard medications, creating a serious public health concern. The passage suggests that antibiotic resistance is caused by ___. A) a lack of new medications B) overuse of antibiotics C) bacteria becoming stronger naturally D) patients refusing treatment

Gravity is the force that pulls objects towards the centre of the Earth. It is also the force that keeps the Moon in orbit around the Earth and the Earth in orbit around the Sun. The strength of gravity depends on the mass of the objects and the distance between them. According to the passage, gravity depends on ___. A) the speed of the objects B) the temperature of the objects C) the mass and distance of the objects D) the shape of the objects

Volcanic eruptions occur when molten rock, called magma, rises to the Earth's surface. The eruption releases gases, ash, and lava. While volcanic eruptions can be destructive, they also create fertile soil that supports agriculture in many regions. The passage states that volcanic eruptions can be ___. A) only destructive B) easily prevented C) both destructive and beneficial D) rare and unimportant

The periodic table organises chemical elements by their atomic number and groups elements with similar properties together. This arrangement, developed in the nineteenth century, allows scientists to predict the behaviour of elements and their compounds. The periodic table helps scientists ___. A) create new elements B) predict how elements behave C) measure the weight of compounds D) determine the age of chemicals