Science is really crucial but it is more than just learning facts or even doing "experiments".
Science is: cooking, riding a bike, looking at stars, animals, materials, mixing colours, nutrition, and so on.
If school has put her off "Science" I wouldn't bother with it as a formal subject, but encourage her to observe closely (watch ducks interacting on a pond or find how many different things you can find inside a hula hoop on the lawn or how leaves change as you go up a tree).
Then maybe in a few months you could go to a Science discovery centre or access the Royal Institute Christmas lectures (lots of years worth are on their website) or do some of the fun activities from the Institute of Physics. Also if an "experiment" doesn't work that is part of science too.
Sound is a huge part of Science, you could discuss what is sound? (Waves of compressed air, a slinky can be used to demonstrate it.). What makes different pitch noises, my DD made a little pan pipe from drinking straws. What about different materials? How do different instruments make the air move to make a sound.
She will quickly be able to pick up the facts of Science when she is older, the key thing is to develop observational skills and an interest in the world around her.
Similarily for English, let her read and write on things she is interested in. For Maths work on the maths all around, shapes, adding up prices in a shop, measuring for a new kitchen......