117 questions at Form 3 · JCE
Most triedMost missedNewest- The diagram below shows a certain type of blood vessel, with fat deposits on its inner wall.
- The diagram below shows a white blood cell.
- In genetic engineering, genes are manipulated to make desired products.
- Answer the following about the menstrual cycle. The graph shows changes in the thickness of a uterus lining over a period of 35 days.
- Answer the following about sound. Thapelo uses the set-up below to produce sound. He pushes the metal plate down at point X and then releases it. Whe…
- Answer the following about force. A ruler is placed next to a spring to measure the changes in the length of the spring when various weights are hung…
- The set-up below is used to investigate the effect of atmospheric pressure on liquids: a bottle of water with a tightly closed cap and a small open h…
- The diagram shows a marble falling through a liquid soap in a transparent container. Letters X (upwards) and Y (downwards) represent forces acting on…
- The diagram below shows an electric circuit: a battery, instrument P in series, instrument Q in parallel across a conductor ABC, and a jockey that ca…
- Match each part of the eye with its function. Lens — focuses images (done for you). Parts: retina, optic nerve, iris, pupil. Functions: allows light …
- Answer the following about alloys.
- The diagram shows a crystal of potassium permanganate placed in a beaker containing water. Heat was then applied under one side of the beaker.
- The first diagram shows some organisms that live in and around a pond. The food web represents their feeding relationships: water lily → water snail,…
- An experiment was conducted to investigate the effect of temperature on the rate of a chemical reaction. A 1 cm piece of magnesium ribbon was placed …
- The diagram below shows a longitudinal section of a tomato fruit.
- Silicon is a non-metallic element. Some of the properties of silicon are similar to those of metals. Some of its properties: • shiny and grey in colo…
- Oxygen can be obtained in the laboratory by the decomposition of hydrogen peroxide in the presence of a catalyst.
- The diagram below shows an electric kettle with the body made of metal, filled with water.
- A boy is standing on a metal bar of length 8 m. The bar is supported at point A and is balanced horizontally. The boy (400 N) is standing 2 metres fr…
- The diagram below shows a machine used to lift a load: coils on an iron core connected to the mains, with an iron bar holding the load.
- Match each hormone with its function. Testosterone — promotes development of a deep voice (done for you). Hormones: insulin, progesterone, adrenaline…
- In an ecosystem, an ecologist found a mophane tree to be having 10 000 leaves which are food for 1000 mophane worms. On the same tree, there were 2 o…
- The diagram below shows an incomplete carbon cycle. The letters A to G represent some of the processes that take place in the cycle.
- The pie charts represent the proportions of different nutrients found in food substances P, Q, R and S (key: water, fats, proteins, carbohydrates). P…
- From the list, choose the features of the hydrosphere: plants, rivers, insects, rain, rocks.
- A set-up was used to investigate the relationship between the length of a wire and its resistance. The voltmeter measured the potential difference ac…
- The diagram shows steps followed when carrying out a test on a green leaf: step 1 boil in water; step 2 boil in alcohol in a hot-water bath (burner o…
PreviousPage 4 of 4