Hi, blocks would be handy for building in the foam and help extend the activity's 'landscape possibilities xx
Questions could involve ..
'What are all these?
'Who has played with them before
'Which is the biggest
'Where is the smallest
'How can the smallest be the tallest?
'Noises a dinosaur makes - loudly, quietly whispering
'What does this dinosaur eat?
'What does that dinosaur eat?
'How can we find food for our dinosaurs to eat?
'What is in the cans?
'What do you think it'll feel like?
'How can it get from the can to the table top?
'What does it feel like?
'One squirt? two? one per dinosaur to stand in? a large squirt for 7 dinosaurs to be in? a huge swamp of foam for all dinosaurs to wade through?
You could write the letters of your name in the foam, say proudly what you've done and invite guessing the individual letters/sounds and children's own markmaking. Celebrate any that the children initiate for themslves :)
'What is the dinosaurs name? storybooks to support this -
dinosaur themed on silkysteps, agreeing bob, annie and paul is good
Explore which has wings for flying
Long necks for tree top grazing
Big teeth for hunting
Long legs for running
Spines for armour
Where the interest is already dinosaurs
making a volcano google search is also fun
Hope this helps, have a great time xx