Yes, it is 40% silver however and not 90% silver like half dollars dated 1964 and earlier.
Half dollars 1965-70 are 40% silver.
90% silver half dollars were minted until 1965, all half dollars dated 1964 and before are 90% silver. From 1965-1970 the half dollar was 40% silver. From 1971-present circulation issue half dollars are copper-nickel and contain no silver.
Kennedy halves from 1965 to 1970 were struck in 40% silver, so yes.
It's currently worth about $5 for the silver. Kennedy half dollars minted 1965-70 contain 40% silver.
The 1964 Kennedy half dollar contain 11.25 grams of silver. Kennedy half dollars from 1965 through 1970 contain 4.60 grams of silver.
Value is for the silver about $2.50
Half dollar minted 1965-70 are 40% silver and currently worth around $4.
The 1965 Kennedy half dollar is a 40% silver coin (1965-1969) but so many were made only a very high grade uncirculated example is worth more than the silver in the coin. The silver value today is about $2.70
1965-1970 Kennedy halves are only 40% silver. Most are valued for just the silver, about $4.50.
US half dollars struck in 1964 and before are 90% silver, 1965 to 1970 are 40% silver, 1971 to date have no silver.
U.S. half dollars dated 1965-1970 contain 40% silver and are currently worth about $3.
U.S. half dollars minted in 1965 through 1970 weigh 11.5 grams and contain 40% silver.