Standard Grade Science

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

steel tubes are and in weight than solid steel tubes.
T and H shaped steel girders are very shapes used in constructing tall buildings.
A steel roof is stronger than a flat steel roof.